#include<iostream>
#include<cstring>
using namespace std;
int main(){
    string a;
    getline(cin,a);
    int Max = a.size();
    char ch;
    int k = 0;
    for(int i = 0 ; i < Max ; i++){
        if(a[i] >= 'a' && a[i] <= 'z')ch = a[i];
        if(a[i] >= 'A' && a[i] <= 'Z')ch = a[i];
        if(a[i] > '0' && a[i] <= '9')
        {
            k = a[i] - '0';
            for(int j = 0 ; j < k-1 ; j ++){
                cout << ch;
            }
        }else{
            cout << ch;
        }

    }
    return 0;
}