func_code_string: #include <bits/stdc++.h>   using namespace std;   const double pi = acos(-1.0);   class domino {    public:     int data[4];     bool IsEqual(domino b) {       for (long long move = 0; move <= 3; move++) {         bool f = true;         for (long long i = 0; i <= 3; i++)           if (data[i] != b.data[(i + move) % 4]) f = false;         if (f) return true;       }       return false;     }   };   vector<domino> a;   int main() {     int n;     cin >> n;     for (long long i = 1; i <= n; i++) {       domino temp;       string s;       cin >> s;       temp.data[0] = s[0] -  0 ;       temp.data[1] = s[1] -  0 ;       cin >> s;       temp.data[3] = s[0] -  0 ;       temp.data[2] = s[1] -  0 ;       bool f = true;       if (a.size() == 0) a.push_back(temp);       for (long long k = 0; k <= a.size() - 1; k++)         if (temp.IsEqual(a[k])) f = false;       if (f) a.push_back(temp);       if (i != n) cin >> s;     }     cout << a.size();   }   