Stupid Password Generator

function stupidPasswordGenerator(input) {
    let n = Number(input[0]);
    let l = Number(input[1]);
    let output = "";

    for (let a = 1; a <= n; a++) {
        for (let b = 1; b <= n; b++) {
            for (let c = 97; c < 97 + l; c++) {
                for (let d = 97; d < 97 + l; d++) {
                    for (let e = Math.max(a, b) + 1; e <= n; e++) {
                        output += `${a}${b}${String.fromCharCode(c)}${String.fromCharCode(d)}${e} `;
                    }
                }
            }
        }
    }

    console.log(output);
    return;
}