input = require('fs').readFileSync('/dev/stdin', 'utf8').split('\n')[0].split(' ');
a = input.shift() * 1;
b = input.shift() * 1;
c = input.shift() * 1;

if (a <= c && c <= b){
  ans = "Yes";
}
else{  
  ans = "No";
}
console.log(ans)