/* 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
{
    private static Random random = new Random();
	public static void main (String[] args) throws java.lang.Exception
	{
        Map<Integer, Integer> counter = new HashMap<Integer, Integer>();
        for (int i = 0; i < 10000000; i++) {
    		random.setSeed(System.nanoTime());
            int key = random.nextInt(7) + 1;
            Integer val = counter.get(key);
            if (null == val)
                val = 0;
            val++;
            counter.put(key, val);
        }
        for (Map.Entry<Integer, Integer> entry : counter.entrySet()) {
            System.out.println(entry.getKey() + ": " + entry.getValue());
        }
	}
}

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