string onestepReduction (string s){
    int n = s.size();
    string reduced = "";
    int count;
    
    for (int i = 0; i < n-1; i++){
        if (s[i] != s[i+1]){
            reduced += s[i];
            count = i;
        }
        else{
            count = i+1;
            break;
        }
    }
    
    for (int j = count+1; j < n; j++) reduced += s[j];
    return reduced;
}

string superReducedString(string s) {
    string reduced = onestepReduction(s);
    
    while (reduced != s && reduced != ""){
        s = reduced;
        reduced = onestepReduction(s);
    }
    if (reduced == "") return "Empty String";
    else return reduced;
}