function rageQuit(input = []) {
    let str = "";
    let path = /[\D]+([\d]+)/g;
    input = input.shift().match(path);
        let pattern = /([\D]+)([0-9]+)/;
        str = input.reduce((accum, element, index)=>{
            let result = element.match(pattern);
            let sub = result[1].toUpperCase();
            let count = Number(result[2]);
         return  str += sub.repeat(count)
        },"")
    let reduced =(new Set(str).size);
    console.log(`Unique symbols used: ${reduced}`);
    console.log(str);
}