import java.util.*;
public class Main{
    public static void main(String[]args){
        Scanner sc=new Scanner(System.in);
        String s=sc.nextLine();
        int n=sc.nextInt();
        while(n-->0){
            StringBuilder sb=new StringBuilder();
            for(int j=0;j<s.length();j++){
                int k=j;
                while(k<s.length()&&s.charAt(k)==s.charAt(j)) k++;
                sb.append(k-j).append(s.charAt(j));
                j=k-1;
            }
            s=sb.toString();
        }
        System.out.println(s);
    }
}