/* -*- coding: utf-8 -*-
 *
 * 2371.cc:  No.2371 最大の試練それは起床 - yukicoder
 */

#include<cstdio>
#include<algorithm>
 
using namespace std;

/* constant */

const int S = 7 * 60 + 30;
const int T = 8 * 60 + 30;

/* typedef */

/* global variables */

/* subroutines */

/* main */

int main() {
  int h, m;
  scanf("%d%d", &h, &m);
  int t = h * 60 + m;

  if (t < S) puts("Yes");
  else if (t < T) puts("Late");
  else puts("No");

  return 0;
}