function rageQuit(input = []) {
    input = input.shift().match(/[\D]+([\d]+)/g).reduce((s, x) => {
     x= x.match(/([\D]+)([0-9]+)/)
            return s += (x[1].toUpperCase()).repeat(Number(x[2]))
    }, "")
    let reduced = (new Set(input).size);
    console.log(`Unique symbols used: ${reduced} \n ${input}`);
}