/* 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
	{
		int wysokosc = 10;
 
        int i=0;
        while(i < wysokosc){
            int j = 0;
            while(j <= i){
                System.out.print("*");
                j++;
            }
            i++;
            System.out.println();
        }
	}
}

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