func_code_string: #include <bits/stdc++.h>   using namespace std;   bool DEB = 0;   void __start__() {     ios::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);   }   mt19937_64 rnd(time(0));   using ll = long long;   using vi = vector<int>;   using ld = long double;   using pii = pair<int, int>;   void test_case() {     ll n, k, two, five, c = 1;     cin >> n >> k;     two = k;     five = k;     while (n % 2 == 0 && two) n /= 2, two--;     while (n % 5 == 0 && five) n /= 5, five--;     cout << n << string(k,  0 );   }   signed main() {     __start__();     int Q = 1;     while (Q--) test_case();   }   