goto

int j = 8;

link1: 

j--; 

if (j <= 5) goto link1;

switch (n)

{

     case 1:

          cost += 1;

          break;

     case 2:

          cost += 2;

          goto case 1;

     case 3:

          cost += 3;

          goto case 1;

     default:

          Console.WriteLine("Invalid selection.");

          break;

}