"use strict";
function main(input) {
    const args = input.split(' ');

    const A = parseInt(args[0]);
    const B = parseInt(args[1]);
    const C = parseInt(args[2]);

    if(A <= C && C <= B) {
        console.log('Yes')
    } else {
        console.log('No')
    }
}
main(require('fs').readFileSync('/dev/stdin', 'utf8'));
