import java.io.*;
class Main{
	public static void main (String[] args)throws IOException{
		int x, sum=0, i;
		
		BufferedReader d =new BufferedReader(new InputStreamReader(System.in));
		x = Integer.parseInt(d.readLine());
		sum =x;
		
		for(i=1; i<3; i++){
			sum *= x;
		}
		System.out.println(sum);
	}
}
/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