func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 100009;   int n;   long long a[N];   void print_ans(int l, int r, vector<long long>& v) {     cout << l <<     << r <<   n ;     for (long long vv : v) {       cout << vv <<    ;     }     cout <<   n ;   }   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cin >> n;     for (int i = 0; i < n; ++i) {       cin >> a[i];     }     vector<long long> fst;     fst.push_back(-a[0]);     a[0] = 0;     print_ans(1, 1, fst);     if (n == 1) {       vector<long long> zero = {0};       print_ans(1, 1, zero);       print_ans(1, 1, zero);       return 0;     }     vector<long long> scd;     for (int i = 1; i < n; ++i) {       long long md = a[i] % n;       if (md < 0) md += n;       long long nm = md * (n - 1);       scd.push_back(nm);       a[i] += nm;     }     print_ans(2, n, scd);     vector<long long> all;     for (int i = 0; i < n; ++i) {       assert(a[i] % n == 0);       all.push_back(-a[i]);     }     print_ans(1, n, all);     return 0;   }   