func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios::sync_with_stdio(false);     int n, m, i;     cin >> n;     if (n < 4) {       cout <<  NO  << endl;       return 0;     }     cout <<  YES  << endl;     if (n % 2)       cout <<  5 * 4 = 20  << endl            <<  20 + 3 = 23  << endl            <<  23 + 2 = 25  << endl            <<  25 - 1 = 24  << endl,           m = 1;     else       cout <<  1 * 2 = 2  << endl            <<  2 * 3 = 6  << endl            <<  4 * 6 = 24  << endl,           m = 0;     for (i = n; i >= 5 + m; i -= 2)       cout << i <<   -   << i - 1 <<   = 1  << endl <<  24 * 1 = 24  << endl;   }   