y, m, d = map(int, input().split())

if 1989 < y < 2019:
    print("Yes")
elif y == 1989:
    if m > 1:
        print("Yes")
    else:
        if d >= 8:
            print("Yes")
        else:
            print("No")
elif y == 2019:
    if m <= 4:
        print("Yes")
    else:
        print("No")
else:
    print("No")