We have five variables x_1, x_2, x_3, x_4, and x_5.
The variable x_i was initially assigned a value of i.
Snuke chose one of these variables and assigned it 0.
You are given the values of the five variables after this assignment.
Find out which variable Snuke assigned 0.

-----Constraints-----
 - The values of x_1, x_2, x_3, x_4, and x_5 given as input are a possible outcome of the assignment by Snuke.

-----Input-----
Input is given from Standard Input in the following format:
x_1 x_2 x_3 x_4 x_5

-----Output-----
If the variable Snuke assigned 0 was x_i, print the integer i.

-----Sample Input-----
0 2 3 4 5

-----Sample Output-----
1

In this case, Snuke assigned 0 to x_1, so we should print 1.
[{"code": "a=list(map(int,input().split()))\nfor i in range(len(a)):\n    if a[i]==0:\n        print(i+1)", "passed": true, "time": 0.85, "memory": 14288.0, "status": "done"}, {"code": "x_1, x_2, x_3, x_4, x_5 = list(map(int, input().split()))\nls = [x_1, x_2, x_3, x_4, x_5]\nnum = ls.index(0)\nprint((num + 1))\n", "passed": true, "time": 0.14, "memory": 14104.0, "status": "done"}, {"code": "x = list(map(int,input().split()))\n\nprint((x.index(0)+1))\n", "passed": true, "time": 0.14, "memory": 14188.0, "status": "done"}, {"code": "x = list(map(int, input().split()))\n\nprint(x.index(0) + 1)", "passed": true, "time": 0.16, "memory": 14320.0, "status": "done"}, {"code": "sum = 0\nfor i in map(int,input().split()):\n  sum += i\nprint(15-sum)", "passed": true, "time": 0.14, "memory": 14292.0, "status": "done"}, {"code": "print(15-sum(map(int,input().split())))", "passed": true, "time": 0.25, "memory": 14216.0, "status": "done"}, {"code": "x=[int(x) for x in input().split()]\nprint(x.index(0)+1)", "passed": true, "time": 0.25, "memory": 14056.0, "status": "done"}, {"code": "x = input().split()\nx = [ int(i) for i in x ]\n\nfor i in range(len(x)):\n  if x[i] ==0:\n    print((i+1))\n", "passed": true, "time": 0.23, "memory": 14292.0, "status": "done"}, {"code": "print(input().replace(' ','').find('0')+1)", "passed": true, "time": 0.14, "memory": 14244.0, "status": "done"}, {"code": "x1,x2,x3,x4,x5 = map(int,input().split())\n\nif x1 == 0 : print(1)\nif x2 == 0 : print(2)\nif x3 == 0 : print(3)\nif x4 == 0 : print(4)\nif x5 == 0 : print(5)", "passed": true, "time": 0.25, "memory": 14076.0, "status": "done"}, {"code": "x = list(map(int,input().split()))\n\nfor i in range(5):\n    if x[i] == 0:\n        print((i+1))\n", "passed": true, "time": 0.22, "memory": 14316.0, "status": "done"}, {"code": "a, b, c, d, e= map(int, input().split())\n\nif a == 0:\n    print(1)\nelif b == 0:\n    print(2)\nelif c == 0:\n    print(3)\nelif d == 0:\n    print(4)\nelse:\n    print(5)", "passed": true, "time": 0.15, "memory": 14092.0, "status": "done"}, {"code": "a, b, c, d, e = list(map(int,input().split()))\n\nif a == 0:\n    print((1))\nelif b == 0:\n    print((2))\nelif c == 0:\n    print((3))\nelif d == 0:\n    print((4))\nelse:\n    print((5))\n", "passed": true, "time": 0.25, "memory": 14244.0, "status": "done"}, {"code": "x=input().split()\n\nfor i in range(0,5):\n  if x[i]==\"0\":\n    print(i+1)", "passed": true, "time": 0.14, "memory": 14216.0, "status": "done"}, {"code": "print(list(map(int,input().split())).index(0) + 1)", "passed": true, "time": 0.14, "memory": 14208.0, "status": "done"}, {"code": "x = input().split() #['0', '2', '3', '4', '5']\nx = [ int(i) for i in x]\n\nfor i in range(len(x)):\n  if x[i] == 0:\n    print(i+1)", "passed": true, "time": 0.15, "memory": 14020.0, "status": "done"}, {"code": "x = list(map(int, input().split()))\n\nfor i in range(len(x)):\n    if x[i] == 0:\n        print(i+1)\n        break\n    else:\n        continue", "passed": true, "time": 0.15, "memory": 14228.0, "status": "done"}, {"code": "print(input().find('0')//2+1)", "passed": true, "time": 0.16, "memory": 14084.0, "status": "done"}, {"code": "x1, x2, x3, x4, x5 = map(int, input().split())\nif x1 == 0:\n    print(1)\n    return\nif x2 == 0:\n    print(2)\n    return\nif x3 == 0:\n    print(3)\n    return\nif x4 == 0:\n    print(4)\n    return\nif x5 == 0:\n    print(5)\n    return", "passed": true, "time": 0.14, "memory": 14060.0, "status": "done"}, {"code": "ls = list(map(int, input().split()))\nfor i in range(5):\n    if ls[i] == 0:\n        print(i+1)\n        break", "passed": true, "time": 0.14, "memory": 14052.0, "status": "done"}, {"code": "x = list(map(int, input().split()))\nfor i in range(5):\n    if x[i] == 0:\n        print((i+1))\n", "passed": true, "time": 0.16, "memory": 14056.0, "status": "done"}, {"code": "x1, x2, x3, x4, x5 = map(int, input().split())\nl = [x1, x2, x3, x4, x5]\nprint(l.index(0) + 1)", "passed": true, "time": 0.14, "memory": 14276.0, "status": "done"}, {"code": "Xs = list(input().split())\nprint(int(Xs.index('0')) + 1)", "passed": true, "time": 0.14, "memory": 14156.0, "status": "done"}, {"code": "print(input().index('0')//2+1)", "passed": true, "time": 0.15, "memory": 14280.0, "status": "done"}, {"code": "y = [int(i) for i in input().split()]\n\nif(y[0]==0): print(1);\nelif(y[1]==0): print(2);\nelif(y[2]==0): print(3);\nelif(y[3]==0): print(4);\nelif(y[4]==0): print(5);", "passed": true, "time": 0.14, "memory": 14084.0, "status": "done"}, {"code": "X = list(map(int,input().split()))\n\nprint((X.index(0) + 1))\n", "passed": true, "time": 0.15, "memory": 14176.0, "status": "done"}, {"code": "x = [int(i) for i in input().split()]\nfor i in range(5):\n    if(x[i] == 0):\n        print(i+1)", "passed": true, "time": 0.14, "memory": 14036.0, "status": "done"}, {"code": "xxx = list(map(int, input().split()))\nans = 0\nfor i in range(5):\n    if xxx[i] == 0:\n        ans = i + 1\nprint(ans)", "passed": true, "time": 0.14, "memory": 14080.0, "status": "done"}, {"code": "value_list = list(map(int, input().split()))\nprint(value_list.index(0) + 1)", "passed": true, "time": 0.14, "memory": 14088.0, "status": "done"}, {"code": "\nl = list(map(int,input().split()))\n\nprint(l.index(0)+1)", "passed": true, "time": 0.14, "memory": 14248.0, "status": "done"}, {"code": "x = list(map(int,input().split()))\n\nfor i in range(len(x)):\n    if x[i]==0:\n        print(i+1)", "passed": true, "time": 0.15, "memory": 14080.0, "status": "done"}, {"code": "y = [int(i) for i in input().split()]\nfor i in range(5):\n  if(y[i]==0): print((i+1));\n", "passed": true, "time": 0.15, "memory": 14236.0, "status": "done"}, {"code": "x = input().split() # ['0', '2', '3', '4', '5']\nx = [ int(i) for i in x ]\n\nfor i in range(len(x)):\n  if x[i] == 0:\n    print(i+1)", "passed": true, "time": 0.17, "memory": 14120.0, "status": "done"}, {"code": "x=input()\nx=list(map(int,x.split()))\nfor i in range(len(x)):\n    if x[i]==0:\n        print(i+1)", "passed": true, "time": 1.03, "memory": 14092.0, "status": "done"}, {"code": "a,b,c,d,e = map(str,input().split())\ns = [a,b,c,d,e]\nnum = s.index('0')\nprint(num+1)", "passed": true, "time": 0.17, "memory": 14080.0, "status": "done"}, {"code": "print(input().split().index('0')+1)", "passed": true, "time": 0.14, "memory": 14232.0, "status": "done"}, {"code": "print(input().split().index(\"0\") + 1)", "passed": true, "time": 0.37, "memory": 14116.0, "status": "done"}, {"code": "num = map(int,input().split())\ns=sum(num)\nprint(15-s)", "passed": true, "time": 0.14, "memory": 14084.0, "status": "done"}, {"code": "x = list(map(int, input().split()))\ni = 0\nfor value in x :\n    i = i + 1\n    if value == 0 :\n        print(i)\n        break", "passed": true, "time": 0.21, "memory": 14172.0, "status": "done"}, {"code": "a, b, c, d, e = list(map(int, input().split()))\nif a == 0:\n    print((1))\nif b == 0:\n    print((2))\nif c == 0:\n    print((3))\nif d == 0:\n    print((4))\nif e == 0:\n    print((5))\n", "passed": true, "time": 0.14, "memory": 14300.0, "status": "done"}, {"code": "l = list(map(int,input().split()))\nfor i in range(0,5) :\n    if l[i] == 0 :\n        print(i+1)", "passed": true, "time": 0.23, "memory": 14292.0, "status": "done"}, {"code": "xl = list(map(int,input().split()))\nprint(xl.index(0)+1)", "passed": true, "time": 0.16, "memory": 14116.0, "status": "done"}, {"code": "x = [int(x) for x in input().split()]\n\nfor i in range(5):\n  if x[i] == 0:\n    print(i+1)", "passed": true, "time": 0.23, "memory": 14080.0, "status": "done"}, {"code": "X = list(map(int, input().split()))\n\nprint (X.index(0) + 1)", "passed": true, "time": 0.25, "memory": 14296.0, "status": "done"}, {"code": "X=list(map(int,input().split()))\nsum=0\nfor i in X:\n  sum+=i\nprint(15-sum)", "passed": true, "time": 0.15, "memory": 14196.0, "status": "done"}, {"code": "X = list(map(int,input().split()))\n\nprint(X.index(0)+1)", "passed": true, "time": 0.14, "memory": 14304.0, "status": "done"}, {"code": "x = list((int(i) for i in input().split()))\nfor i in range(5):\n  if x[i] == 0:\n    print(i+1)\n    break", "passed": true, "time": 0.14, "memory": 14168.0, "status": "done"}, {"code": "x_list=list(map(int,input().split()))\nfor i in range(len(x_list)):\n  if (i+1) != x_list[i]:\n    print((i+1))\n", "passed": true, "time": 0.14, "memory": 14232.0, "status": "done"}, {"code": "x=input().split()\nx=[ int(i) for i in x]\n\nfor i in  range (len(x)):\n  if x[i]==0:\n    print((i+1))\n", "passed": true, "time": 0.14, "memory": 14332.0, "status": "done"}, {"code": "x=list(map(int,input().split()))\nfor i in range(5):\n  if x[i]==0:\n    print(i+1)", "passed": true, "time": 0.14, "memory": 14224.0, "status": "done"}, {"code": "x = list(map(int, input().split()))\na = 300\nfor i in range(len(x)):\n    if x[i] == 0:\n        a = i + 1\nprint(a)\n", "passed": true, "time": 0.14, "memory": 14300.0, "status": "done"}, {"code": "x =list(map(int, input().split()))\n\nfor i in range(len(x)):\n    if x[i] == 0:\n        print(i+1)", "passed": true, "time": 0.15, "memory": 14080.0, "status": "done"}, {"code": "li = input().split()\nprint ((li.index(\"0\")) + 1)", "passed": true, "time": 0.15, "memory": 14020.0, "status": "done"}, {"code": "S = list(map(int, input().split()))\n\nprint(S.index(0)+1)", "passed": true, "time": 0.14, "memory": 14292.0, "status": "done"}, {"code": "x = list(map(int, input().split()))\n\nfor i in range(len(x)):\n    if int(x[i]) == 0:\n        print(i+1)", "passed": true, "time": 0.14, "memory": 14060.0, "status": "done"}, {"code": "l = list(map(int,input().split()))\nfor i in range(5):\n  if(l[i]==0):\n    print(i+1)", "passed": true, "time": 0.14, "memory": 14240.0, "status": "done"}, {"code": "a=list(map(int,input().split()))\nt=0\ns=0\nfor i in range(len(a)):\n    t=t+1\n    if a[i]!=i+1:\n     s=t\nprint(s)", "passed": true, "time": 0.14, "memory": 14212.0, "status": "done"}, {"code": "x=list(map(int ,input().split()))\nfor i in range(5):\n    if i+1!=x[i]:\n        print(i+1)", "passed": true, "time": 0.24, "memory": 14212.0, "status": "done"}, {"code": "x=list(map(int,input().split()))\nfor i in range(5):\n    if x[i]==0:\n        print(i+1)", "passed": true, "time": 0.14, "memory": 14088.0, "status": "done"}, {"code": "a = input().split()\nprint(a.index('0')+1)", "passed": true, "time": 0.24, "memory": 14276.0, "status": "done"}, {"code": "print(input().split().index('0')+1)", "passed": true, "time": 0.14, "memory": 14068.0, "status": "done"}, {"code": "variables = [int(i) for i in input().split()]\nfor i in range(5) :\n    if variables[i]==0 :\n        print(i+1)", "passed": true, "time": 0.14, "memory": 14080.0, "status": "done"}, {"code": "l = list(map(int, input().split()))\nfor i in range(5):\n    if l[i] == 0:\n        ans = i + 1\n        print(ans)\n", "passed": true, "time": 0.7, "memory": 14180.0, "status": "done"}, {"code": "l = list(map(int, input().split()))\nfor i in range(5):\n    if l[i] == 0:\n        print((i + 1))\n", "passed": true, "time": 0.15, "memory": 14208.0, "status": "done"}, {"code": "x = list(map(int, input().split()))\n\nans = 0\n\nfor i in range(5):\n    if x[i] == 0:\n        ans = i + 1\n\nprint(ans)\n", "passed": true, "time": 0.18, "memory": 14328.0, "status": "done"}, {"code": "#!/usr/bin/env python3\n\nimport sys\n\ninput = iter(sys.stdin.read().splitlines()).__next__\n\nsys.setrecursionlimit(10000)\n\nA = list(map(int, input().split()))\n\nfor i in range(len(A)):\n   if A[i] == 0:\n      print((i+1))\n\n", "passed": true, "time": 0.17, "memory": 14184.0, "status": "done"}, {"code": "x = list(map(int, input().split()))\nif x[0] == 0:\n  print('1')\nelif x[1] == 0:\n  print('2')\nelif x[2] == 0:\n  print('3')\nelif x[3] == 0:\n  print('4')\nelse:\n  print('5')", "passed": true, "time": 0.15, "memory": 14104.0, "status": "done"}, {"code": "a,b,c,d,e = map(int,input().split())\n\nif a*1 == 0:\n    print(1)\nelif b*1 == 0:\n    print(2)\nelif c*1 == 0:\n    print(3)\nelif d*1 == 0:\n    print(4)\nelif e*1 == 0:\n    print(5)", "passed": true, "time": 0.14, "memory": 14068.0, "status": "done"}, {"code": "x = list(map(int, input().split()))\nfor i in range(len(x)):\n    if x[i] == 0:\n        print(i+1)", "passed": true, "time": 0.21, "memory": 14212.0, "status": "done"}, {"code": "x = input()\nfor i in range(1,6):\n    if str(i) not in x:\n        print(i)\n        break", "passed": true, "time": 0.21, "memory": 14096.0, "status": "done"}, {"code": "N = list(map(int,input().split()))\nprint(N.index(0)+1)", "passed": true, "time": 0.14, "memory": 14088.0, "status": "done"}, {"code": "a, b, c, d, e = list(map(int, input().split()))\nif a == 0:\n  print((1))\nelif b == 0:\n  print((2))\nelif c == 0:\n  print((3))\nelif d == 0:\n  print((4))\nelse:\n  print((5))\n", "passed": true, "time": 0.14, "memory": 14228.0, "status": "done"}, {"code": "a = [int(x) for x in input().split()]\nprint(a.index(0) + 1)", "passed": true, "time": 0.14, "memory": 14220.0, "status": "done"}, {"code": "x=list(map(int,input().split()))\nfor i in range(5):\n  if x[i]!=i+1:\n    print(i+1)", "passed": true, "time": 0.21, "memory": 14320.0, "status": "done"}, {"code": "x = list(map(int, input().split()))\n\nfor i in range(5):\n    if x[i] == 0:\n        print((i + 1))\n        break\n", "passed": true, "time": 0.22, "memory": 14316.0, "status": "done"}, {"code": "data = [int(x) for x in input().split(\" \")]\n\nfor i in range(len(data)):\n  if data[i] == 0: print((i+1))\n", "passed": true, "time": 0.23, "memory": 14104.0, "status": "done"}, {"code": "x=list(map(int,input().split()))\nprint(x.index(0)+1)", "passed": true, "time": 0.18, "memory": 14192.0, "status": "done"}, {"code": "x1, x2, x3, x4, x5 = map(int,input().split())\nif x1 == 0:\n  print(1)\nelif x2 == 0:\n  print(2)\nelif x3 == 0:\n  print(3)\nelif x4 == 0:\n  print(4)\nelse:\n  print(5)", "passed": true, "time": 0.14, "memory": 14304.0, "status": "done"}, {"code": "x=list(map(int ,input().split()))\ncount=0\nfor i in range(0,5):\n\tif(x[i]==0):\n\t\tcount+=1\n\t\tnumber=i+1\n\telse:\n\t\tcount+=0\n\t\t\nprint(number)\n", "passed": true, "time": 0.14, "memory": 14268.0, "status": "done"}, {"code": "X = input().split()\nprint((X.index(\"0\") + 1))\n", "passed": true, "time": 0.14, "memory": 14196.0, "status": "done"}, {"code": "#                               #\n    # author : samars_diary #\n    # 18-09-2020 \u2502 18:46:42 #\n#                               #\n\nimport sys, os.path\n\n#if(os.path.exists('input.txt')):\n    #sys.stdin = open('input.txt',\"r\")\n    #sys.stdout = open('output.txt',\"w\")\n\nsys.setrecursionlimit(10 ** 5)\n\ndef mod(): return 10**9+7\ndef i(): return sys.stdin.readline().strip()\ndef ii(): return int(sys.stdin.readline())\ndef li(): return list(sys.stdin.readline().strip())\ndef mii(): return map(int, sys.stdin.readline().split())\ndef lii(): return list(map(int, sys.stdin.readline().strip().split()))\n\n#print=sys.stdout.write\n\ndef solve():\n    a=lii()\n    print(1+a.index(0))\n\nfor _ in range(1):\n    solve()", "passed": true, "time": 0.14, "memory": 14340.0, "status": "done"}, {"code": "xs = list(map(int, input().split()))\nprint(xs.index(0) + 1)", "passed": true, "time": 0.14, "memory": 14084.0, "status": "done"}, {"code": "x1,x2,x3,x4,x5 = map(int,input().split())\n\nif x1==0:\n    print('1')\nelif x2==0:\n    print('2')\nelif x3==0:\n    print('3')\nelif x4==0:\n    print('4')\nelif x5==0:\n    print('5')", "passed": true, "time": 0.14, "memory": 14324.0, "status": "done"}, {"code": "import math,string,itertools,fractions,heapq,collections,re,array,bisect,sys,random,time, copy,bisect\n#from operator import itemgetter\n#from heapq import heappush, heappop\n#import numpy as np\n#from scipy.sparse.csgraph import breadth_first_order, depth_first_order, shortest_path, floyd_warshall, dijkstra, bellman_ford, johnson\n#from scipy.sparse import csr_matrix\n#from decimal import Decimal, ROUND_HALF_UP, ROUND_HALF_EVEN\nimport sys\n\nsys.setrecursionlimit(10**7)\ninf = 10**20\nmod = 10**9 + 7\n\nstdin = sys.stdin\n\nni = lambda: int(ns())\nnf = lambda: float(ns())\nna = lambda: list(map(int, stdin.readline().split()))\nnb = lambda: list(map(float, stdin.readline().split()))\nns = lambda: stdin.readline().rstrip()  # ignore trailing spaces\n\nx = na()\nprint(x.index(0) + 1)", "passed": true, "time": 0.4, "memory": 14104.0, "status": "done"}, {"code": "a = list(map(int,input().split()))\nprint(15-sum(a))", "passed": true, "time": 0.15, "memory": 14344.0, "status": "done"}, {"code": "Xs = [int(x) for x in input().split()]\n\nprint(Xs.index(0) + 1)", "passed": true, "time": 0.14, "memory": 14076.0, "status": "done"}, {"code": "x=list(map(int,input().split()))\ny=x.index(0)\nprint(y+1)", "passed": true, "time": 0.28, "memory": 14304.0, "status": "done"}, {"code": "print(list(input().split()).index(\"0\") + 1)  ", "passed": true, "time": 0.14, "memory": 14272.0, "status": "done"}, {"code": "x=list(input().split())\nfor i in range(len(x)):\n    if(x[i]==\"0\"):\n        print(i+1)", "passed": true, "time": 0.14, "memory": 14288.0, "status": "done"}, {"code": "print(input().split().index('0')+1)", "passed": true, "time": 0.14, "memory": 14240.0, "status": "done"}, {"code": "x1,x2,x3,x4,x5=list(map(int,input().split()))\n\nif x1 == 0:\n    print(1)\nelif x2 == 0:\n    print(2)\nelif x3 == 0:\n    print(3)\nelif x4 == 0:\n    print(4)\nelse:\n    print(5)", "passed": true, "time": 0.14, "memory": 14080.0, "status": "done"}, {"code": "c = list(map(int,input().split()))\n\nfor i in range(0,5):\n    if c[i] != i+1:\n        print((i+1))\n    else:\n        pass\n", "passed": true, "time": 0.13, "memory": 14088.0, "status": "done"}, {"code": "def main():\n  nums = list(map(int,input().split()))\n  for i,n in enumerate(nums):\n    if n == 0:\n      return i + 1\n\ndef __starting_point():\n  print(main())\n__starting_point()", "passed": true, "time": 0.14, "memory": 14032.0, "status": "done"}, {"code": "X = list(map(int, input().split()))\n\nprint((X.index(0) + 1))\n", "passed": true, "time": 0.14, "memory": 14084.0, "status": "done"}]