/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		for (int i=0, m=2; i <= 5; i++) {
			m = (int) Math.pow(m, i);
			System.out.println(i + ": " + m);
		}
	}
}