Y,M,D = map(int,input().split())

if 1989 < Y < 2019:
    print("Yes")
elif Y == 1989:
    if M > 1:
        print("Yes")
    else:
        if D > 7:
            print("Yes")
        else:
            print("No")
elif Y == 2019:
    if M < 5:
        print("Yes")
    else:
        print("No")
else:
    print("No")