func_code_string: #include <bits/stdc++.h>   using namespace std;   long long int num = pow(10, 9) + 7;   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     long long int n, k;     cin >> n >> k;     long long int c[n];     for (int i = 0; i < n; ++i) {       cin >> c[i];     }     long long int max_diff = -1;     for (int i = 0; i < n; ++i) {       for (int j = 0; j < n; j++) {         if (abs(c[i] - c[j]) > max_diff) max_diff = abs(c[i] - c[j]);       }     }     if (max_diff > k) {       cout <<  NO ;     } else {       cout <<  YES  << endl;       for (int i = 0; i < n; ++i) {         for (int j = 1; j <= c[i]; j++) {           if (j % k == 0)             cout << k <<    ;           else             cout << j % k <<    ;         }         cout << endl;       }     }   }   