Y,M,D=map(int,input().split())
if 1990<=Y<=2018:
    print('Yes')
elif Y==1989 and M==1 and D==1 or 2 or 3 or 4 or 5 or 6 or 7:
    print('No')
elif Y==2019 and M>5:
    print('No')
else:
    print('a')