#include <iostream>
#include <cmath>
#define max 1000
using namespace std;

int main () {
             
             int c; cin >> c;
             int k; cin >> k;
             
             int min = static_cast <int> (pow (10, float (k)));
             
             bool p = 0;
             int br = 0;
             while (!p) {
                         
                         br += min;
                         if (br >= c) p = 1;
                         
                         }
             
             p = 0;
             
             
             cout << br;
             return 0;
             }