var lines=[];
var reader = require('readline').createInterface({
    input: process.stdin,
    output: process.stdout
});
reader.on('line', function (line) {
  lines.push(line);
});
reader.on('close', function () {
  var l=lines[0];
  var [boysExceptYasuo,girls]=l.split(/\s+/);
  var remainGirls=pairExceptYasuo(boysExceptYasuo,girls);
  console.log(remainGirls>0?"YES":"NO");
  function pairExceptYasuo(boysExceptYasuo,girls) {
     return boysExceptYasuo-girls;
  } 
});