package aaa;
import java.util.Scanner;
public class vote {
	public static void main(String[] args) {
		Scanner in=new Scanner(System.in);
		int x;
		int []numbers=new int[10];
		x=in.nextInt();
		while(x!=-1) {
			if(x>=0&&x<=9) {
				numbers[x]++;
			}
		x=in.nextInt();
		}
		for(int i=0;i<numbers.length;i++) {
			System.out.println(i+":"+numbers[i]);
		}
		
	}

}