import collections
ls = list(map(int,input().split()))
counter = collections.Counter(ls)
ls2 = list(counter.values())
if 2 in ls2:
    print('Yes')
else:
    print('No') import collections collections ls = list(map(int,input().split())) ls list(map(int,input().split())) list map(int,input().split()) map int input().split() ().split () input split counter = collections.Counter(ls) counter collections.Counter(ls) collections.Counter collections Counter ls ls2 = list(counter.values()) ls2 list(counter.values()) list counter.values() counter.values counter values if 2 in ls2:
    print('Yes')
else:
    print('No') 2 in ls2 2 ls2 print('Yes') print 'Yes' print('No') print 'No' ls = list(map(int,input().split())) list(map(int,input().split())) ls ls2 = list(counter.values()) list(counter.values()) ls2 counter = collections.Counter(ls) collections.Counter(ls) counter
import collections
ls = list(map(int,input().split()))
counter = collections.Counter(ls)
ls2 = list(counter.values())
if 2 in ls2:
    print('Yes')
else:
    print('No')