'use strict'

function main(input) {
  input = input.split(' ').map(v => ~~v)

  let ans = 'No'
  if (input[0] <= input[2] && input[2] <= input[1]) {
    ans = 'Yes'
  }

  console.log(ans)
}
main(require('fs').readFileSync('/dev/stdin', 'utf8'))