Numbers, Divisible by 9

function divisibleByNine(input) {
    let num = Number(input[0]);
    let num1 = Number(input[1]);
    let sum = 0;
    let output = "";
    for (let i=num; i<=num1;i++) {
        if(i % 9 == 0) {
            sum += i;
            output += i +  "\n" ;
        }
    }
    console.log(`The sum: ${sum}`);
    console.log(output);
}