'use strict'

function main(s) {

  s = s.split('\n')[0].split(' ').map(n => Number(n));

  const a = s[0];
  const b = s[1];
  const c = s[2];

  const ans = (a <= c && c <= b) ? 'Yes' : 'No';

  console.log(ans);
}

main(require("fs").readFileSync("/dev/stdin", "utf8"));
