public class Math {
    static int pi = 2;
    public static String add(String a,String b) {
        String res = a + b;
     return res;
    }
public static int Zzz(int s,int w){
        int sum = s+w;
        return sum;
}
public static int Standup(int r,int t) {
    int lol=1;
    for (int i = 0; i < t; i++) {
        lol = lol * r;

    }
    return lol;
    }
}