func_code_string: #include <bits/stdc++.h>   using namespace std;   int sub_tern(int c, int a) {     int temp_c;     int temp_a;     int diff;     long sum = 0;     int three_power = 1;     while (c > 0 || a > 0) {       temp_c = c % 3;       c = c / 3;       temp_a = a % 3;       a = a / 3;       diff = temp_c - temp_a;       if (diff < 0) {         diff += 3;       }       sum += (long)diff * (long)three_power;       three_power *= 3;     }     return sum;   }   int main() {     int a;     int c;     cin >> a >> c;     if (a == c) {       cout <<  0 n ;       return 0;     }     cout << sub_tern(c, a) <<   n ;     return 0;   }   