func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     if (n < 4) {       cout <<  NO ;       return 0;     }     cout <<  YES  << endl;     if (n % 2 == 0) {       for (int i = 6; i <= n; i += 2) {         cout << i <<   -   << i - 1 <<   = 1  << endl;       }       cout <<  4 * 3 = 12  << endl;       cout <<  2 * 1 = 2  << endl;       cout <<  12 * 2 = 24  << endl;       for (int i = 6; i <= n; i += 2) {         cout <<  24 * 1 = 24  << endl;       }     } else {       for (int i = 7; i <= n; i += 2) {         cout << i <<   -   << i - 1 <<   = 1  << endl;       }       cout <<  5 - 2 = 3  << endl;       cout <<  3 * 4 = 12  << endl;       cout <<  3 - 1 = 2  << endl;       cout <<  2 * 12 = 24  << endl;       for (int i = 7; i <= n; i += 2) {         cout <<  24 * 1 = 24  << endl;       }     }     return 0;   }   