func_code_string: #include <bits/stdc++.h>   int n;   long long x, y, z = 2;   int main() {     scanf( %d , &n);     for (long long k = 1; k <= n; k++) {       y += 2;       x += y;       double a = x;       double b = z;       a = (double)(a / k);       b = (double)(b / k);       a = (double)a * x;       printf( %.0lf n , (double)a - b);       z = x;     }   }   