코딩테스트 11번

package main;

import java.util.Scanner;


public class Main {

	public String solu(String a) {
		String c = "";
		int count = 1;
		
		for(int i = 0; i < a.length()-1; i ++) {
			
			if(a.charAt(i) == a.charAt(i+1)) {
				count++;
			}else {
				
				c +=a.charAt(i);
				if( count > 1 ) {
					
					c += String.valueOf(count);
					count = 1;
				}
				
			}
		}
		
		
		
	return c;
	
	}
		
	
	
	
	public static void main(String[] args) {
		
	
	
	Main main = new Main();
	
	Scanner scan = new Scanner(System.in);
	
	String a = scan.next();
	
	
	
	
	
	System.out.println(main.solu(a));
	

	

	}
	
	
	

	
	}