import java.io.InputStreamReader;
import java.io.BufferedReader;
import java.io.IOException;

public class Main {
    public static void main(String args[] ) throws IOException {
      BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
      String line = br.readLine();
      int n = Integer.parseInt(line);
      int v = n;
      
      for(int i = 0; i < 2; i++){
        n *= v;
      }

      System.out.println(n);
    }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz