/**
 * @author ezgi
 *
 */
public class CoinFlip {


	/**
	 * @return true with .5 probability
	 */
	public static boolean heads(){ 
		return Math.random() < 0.5; 
	}

	/**
	 * @param args[0] number of coin flips in one trial (N)
	 * @param args[1] number of trials (M)
	 */
	public static void main(String[] args){ 
		/*
		 * i and j are indexing variables
		 * cnt keeps track of number of heads in one trial  
		 */
		int i, j, cnt;
		int  N = Integer.parseInt(args[0]);
		int  M = Integer.parseInt(args[1]);

		/*
		 * hist: histogram of head counts
		 * hist[j] is the count of how many of the M trials got j heads
		 */ 
		int[] hist = new int[N+1];
		
		for (j = 0; j <= N; j++)
			hist[j] = 0;

		/*
		 * Flip the coin and count the number of heads.
		 * Increment the corresponding histogram bin after each trial. 
		 */
		for (i = 0; i < M; i++, hist[cnt]++)
			for (cnt = 0, j = 0; j <= N; j++)
				if (heads()) 
					cnt++;


		/*
		 * Print the histogram 
		 * With big enough number of trials, it should be a normal distribution
		 */
		for (j = 0; j <= N; j++) {
			System.out.print(j);
			if (hist[j] == 0) 
				System.out.print(".");
			for (i = 0; i < hist[j]; i+=1)
				System.out.print("*");
			System.out.println(); 
		}
	}
}