a,b,c = map(int,input().split())
if a > 1989 and a < 2019:
    print("Yes")
elif a == 2019:
    if b > 4:
        print("No")
    else:
        print("Yes")
elif a == 1989:
    if b != 1:
        print("Yes")
    else:
        if c > 7:
            print("Yes")
        else:
            print("No")
else:
    print("No")