func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long int n;     cin >> n;     vector<long long int> v;     for (int i = 0; i < n; i++) {       long long int x;       cin >> x;       v.push_back(x);     }     if (n > 1) {       cout <<  1 1  << endl;       cout << (long long int)(-1) * v[0] << endl;       cout <<  1   << n << endl;       cout <<  0  ;       for (int i = 1; i < n; i++) {         cout << (long long int)(-1) * n * v[i] <<    ;       }       cout << endl;       cout <<  2   << n << endl;       for (int i = 1; i < n; i++) {         cout << (long long int)(n - 1) * v[i] <<    ;       }       cout << endl;     } else {       cout <<  1 1  << endl;       cout << (-1) * v[0] << endl;       cout <<  1 1  << endl;       cout << 0 << endl;       cout <<  1 1  << endl;       cout << 0 << endl;     }     return 0;   }   