func_code_string: #include <bits/stdc++.h>   using namespace std;   long long a[100009];   int n;   int main() {     cin >> n;     for (int i = 1; i <= n; i++) cin >> a[i];     if (n > 1) {       cout << 1 <<     << n - 1 << endl;       for (int i = 1; i <= n - 1; i++)         if (a[i] == 0)           cout << (long long)(n - 1) * n <<    ;         else           cout << a[i] * (n - 1) <<    ;       cout << endl;       cout << 1 <<     << n << endl;       for (int i = 1; i <= n; i++)         if (a[i] == 0)           cout << -(long long)(n - 1) * n <<    ;         else           cout << -a[i] * n <<    ;       cout << endl;       cout << n <<     << n << endl;       if (a[n] == 0)         cout << (long long)(n - 1) * n;       else         cout << a[n] * (n - 1) << endl;     } else       cout <<  1 1  << endl            << 1 << endl            <<  1 1  << endl            << 1 << endl            <<  1 1  << endl            << -a[1] - 2;     return 0;   }   