func_code_string: #include <bits/stdc++.h>   const double pi = acos(-1.0), eps = 1e-9;   const int dx[8] = {1, -1, 0, 0, 1, 1, -1, -1};   const int dy[8] = {0, 0, 1, -1, 1, -1, -1, 1};   const int MO = (int)(1e9 + 7);   using namespace std;   int main() {     long long n;     cin >> n;     while (n % 3 == 0) n /= 3;     cout << n / 3 + 1 << endl;   }   