#include <bits/stdc++.h>
using namespace std;
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  long long n, k;
  cin >> n >> k;
  long long cnt = 0, aux = n;
  while (aux != 0) {
    cnt += aux % 10 == 0;
    if (aux % 10 != 0) break;
    aux /= 10;
  }
  if (cnt >= k)
    cout << n << "\n";
  else {
    long long p2 = 0, p5 = 0, aux = n;
    while (aux % 2 == 0) {
      p2++;
      aux /= 2;
    }
    while (aux % 5 == 0) {
      p5++;
      aux /= 5;
    }
    for (int i = p2; i < k; ++i) n *= 2;
    for (int i = p5; i < k; ++i) n *= 5;
    cout << n << "\n";
  }
  return 0;
}
