#include "loop.hpp"

long run5(int n) {

   long sum = 0;                             /* line 1 */

   for (int i = 1 ; i <= n ; i++ )   {       /* line 2 */
       
       for (int j = i-1; j <= i+3; j++)  {   /* line 3 */
          
         sum++;                              /* line 4 */

       }
       
   }
   
   return sum;

}