/**
 * @param {number} n
 * @return {string}
 */
var convertToTitle = function(n) {
    let title = [];
    while (n--) {
        let c = n%26+1;
        console.info(n, c, String.fromCharCode(64+c));
        n = ~~(n / 26); 

        title.unshift(String.fromCharCode(64+c));
    }
    return title.join('');
};

console.info(convertToTitle(701))