n=int(input())

l=[x for x in range(1,n+1)]

p=0

for ll in l:
  if ll%2!=0:
    p+=1

print(p/len(l)) n=int(input()) n int(input()) int input() input x for x in range(1,n+1) for x in range(1,n+1) x range(1,n+1) range 1 n+1 n 1 for x in range(1,n+1) x l=[x for x in range(1,n+1)] l [x for x in range(1,n+1)] p=0 p 0 for ll in l:
  if ll%2!=0:
    p+=1 ll l if ll%2!=0:
    p+=1 ll%2!=0 ll%2 ll 2 0 p+=1 p 1 print(p/len(l)) print p/len(l) p len(l) len l n=int(input()) int(input()) n p=0 0 p p+=1 1 p l=[x for x in range(1,n+1)] [x for x in range(1,n+1)] l
n=int(input())

l=[x for x in range(1,n+1)]

p=0

for ll in l:
  if ll%2!=0:
    p+=1

print(p/len(l))