#include <bits/stdc++.h>
using namespace std;
 
int main(){
 
	string s;
	cin>>s;
	string enc="";
 
	char curr=s[0];
	int cnt=0;
 
	 for (int i = 0; i < s.size(); i++) {
        if (s[i] != curr) {
            enc += curr;
            enc += to_string(cnt);  // ✅ Convert count to string
            curr = s[i];
            cnt = 0;
        }
        cnt++;
    }
 
    // ✅ Append last character and count
    enc += curr;
    enc += to_string(cnt);
 
 
	reverse(enc.begin(),enc.end());
 
	cout<<" enc string : "<<enc;
 
 
}

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YWFiYw==

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