process.stdin.resume();
process.stdin.setEncoding('utf8');
// Here your code !
process.stdin.on('data', function (chunk) {
    var lines = chunk.toString().split(' ');
    var A = parseInt(lines[0]);
    var B = parseInt(lines[1]);
    var C = parseInt(lines[2]);
    
    if(A<=C && C<=B)
    {
    console.log("Yes");    
    }else{
    console.log("No");    
    }
});
