process.stdin.resume();
process.stdin.setEncoding('utf8');
var lines = [];
var reader = require('readline').createInterface({
  input: process.stdin,
  output: process.stdout
});
reader.on('line', (line) => {
  lines.push(line);
});
reader.on('close', () => {
  line = lines.split(" ");
  const D = line[0];
  const T = line[1];
  const S = line[2];
  
  if (S * T >= D) {
    console.log('YES');
  }else{
    console.log('NO');
  }
});