#include <cstdio>
#include <iostream>
#include <algorithm>
#include <cstring>

using namespace std;
const int N = 30;

string s;
int n;
int main(){

    cin >> s;
    cin >> n;

    for(int m = 0;m < n;m++){
        string nexts = "";
        for(int i = 0;i < s.length();){
            int t = s[i]-'0';
            int k = 1;//计数

            for(int j = i+1;j < s.length();j++){
                if(s[i] == s[j]){
                    k++;
                }
                else{
                    break;
                }
            }


            nexts += (k+'0');
            nexts += (t+'0');
            //i += k;
            i += k;
        }
        s = nexts;
    }

    cout << s << endl;

    return 0;
}