func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 4e4 + 10;   const int inf = 1e9;   int t;   int n;   int b[N], ans[N];   void solve() {     cin >> n;     for (int i = 0; i < n; i++) cin >> b[i];     long long tot = 0;     for (int i = 0; i < n; i++) tot += b[i];     if (tot % (n * (n + 1) / 2) != 0) {       cout <<  NO n ;       return;     }     tot /= n * (n + 1) / 2;     for (int i = 0; i < n; i++) {       long long tmp = b[(i - 1 + n) % n] - b[i] + tot;       if (tmp <= 0 || tmp % n != 0 || tmp / n > inf) {         cout <<  NO n ;         return;       }       ans[i] = tmp / n;     }     cout <<  YES n ;     for (int i = 0; i < n; i++) cout << ans[i] <<    ;     cout << endl;   }   int main() {     ios::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     cin >> t;     while (t--) {       solve();     }     return 0;   }   