const repeatString = function repeatString (string, num) {
    
    if (num < 0) {return("ERROR")}
    
    let repeatedString = ''
    
    for (let i = 0; i < num; i ++) {
      repeatedString += string;
    }
    return repeatedString;

        }
    



// Do not edit below this line
module.exports = repeatString;