func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, k, x1, x2, s = 0, x, y1 = 0, y2 = 0, sm = 0;     cin >> n;     for (int i = 0; i < n; i++) {       cin >> x;       for (int i = 0; i < x; i++) cout << 7 <<    ;       cout << endl;     }     return 0;   }   