function rageQuit (input){
    let regexString = /[^0-9]+/g;
    let regexNum = /[0-9]+/g;
 input=input.shift()

    let finalString = '';
    let uniqueSymbols = {};
    let txt = input.match(regexString);
    let num = input.match(regexNum);

    for(let i = 0; i < txt.length; i++){
        if( txt !==null&& num !==null){
        let a = txt[i].toUpperCase();

        for (let el of a){
            uniqueSymbols[el] = 0;
        }

        let addToFinalString = '';
        for(let j = 1; j <= Number(num[i]); j++) {
            addToFinalString += a;
        }
        finalString += addToFinalString;
    }
}
    let finalUniqueSymbols = Object.keys(uniqueSymbols);

    console.log(`Unique symbols used: ${finalUniqueSymbols.length}`);
    console.log(finalString);

}