package com.assignment;
import java.util.Scanner;
public class demodemo {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner sc = new Scanner(System.in);
// String d =“ss”;
// System.out.println(d.length());
String s = sc.next();
StringBuilder ans = new StringBuilder();
for(int i=0;i<s.length();i++)
{
char temp = s.charAt(i);
int count =1;
if(i<=s.length()-1) {
while(temp==s.charAt(i+1))
{
count++;
i++;
}
}
else
{
temp = s.charAt(i);
count =1;
}
ans.append(temp);
ans.append(count);
}
System.out.println(ans.toString());
}
}