func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 1e5 + 100;   long long n, sum, arr[N], cnt;   int main() {     scanf( %lld , &n);     for (int i = 0; i < n; ++i) {       scanf( %lld , &arr[i]);       sum += arr[i];     }     sort(arr, arr + n);     for (int i = 0; i < n - 1; ++i) {       if (arr[i] == arr[i + 1]) {         cnt++;         if (i && arr[i - 1] == arr[i] - 1) return puts( cslnb ), 0;         if (cnt > 1) return puts( cslnb ), 0;         if (arr[i] == 0) return puts( cslnb ), 0;       }     }     sum -= n * (n - 1) / 2;     if (sum & 1)       puts( sjfnb );     else       puts( cslnb );   }   