HW6.29

 public class Solution
 {
     public static void main(String[] args)
     {
         int count = 0;
         int[] card = new int[4];
         int sum = 0;
         while(true)
         {
             sum = 0;
             for(int i = 0; i < 4; i++)
                 card[i] = (int)(Math.random() * 13 + 1);
             count++;
             for(int i: card)
                 sum += i;
             if(sum == 24)
                 break;
         }

         System.out.println("It has run " + count + " times");
     }
 }