func_code_string: #include <bits/stdc++.h>   using namespace std;   void cppio() {     ios_base::sync_with_stdio(0);     cin.tie(0);   }   const int maxn = int(2e5) + 10;   int n;   int a[maxn];   int p, q;   long long first, second;   int gcd(int a, int b) {     if (!b) {       first = 1, second = 0;       return a;     }     int q = a / b;     int ret = gcd(b, a % b);     tie(first, second) = make_pair(second, first - second * q);     return ret;   }   int ans[maxn][3];   int main() {     cppio();     cin >> n;     for (int i = 1; i <= (n); ++i) cin >> a[i];     if (n == 1) {       cout <<  1 1 n  << (-a[1]) <<   n1 1 n0 n1 1 n0 n ;       return 0;     }     cout << 1 <<     << n <<   n0  ;     for (int i = 2; i <= n; ++i) {       cout << (-n * 1ll * a[i]) <<    ;     }     cout <<   n ;     cout << 1 <<     << 1 <<   n ;     cout << (-a[1]) <<   n ;     cout << 2 <<     << n <<   n ;     for (int i = 2; i <= n; ++i) {       int first = a[i];       cout << ((n - 1) * 1ll * first) <<    ;     }     cout <<   n ;     return 0;   }   