#unittest {
    name: "Max memory block protection.";
    error: RUNTIME;
};

func main () {
    var s = "AAAAAAAAAAAAA";
    
    s = s+1000000
    
    var ret = ""
    for (var c in s) {
        if (c == "A") {
            while(true) {
                ret += ret+c;
            }
        }
    }
    return ret;
}