19任意三个数的和为15

public void  Numner()
       {
           //1-9任意三个数的和为15
           for (int i=1; i <= 9;i++ )
           {
               for (Int32 j = i; j <= 9; j++)
               {
                   for (Int32 k = j; k <= 9; k++)
                   {
                       if (i + j + k == 15)
                       {
                         
                           Response.Write(String.Format("{0}+{1}+{2}=15", i, j, k)+ "<br/>");
                       }
                   }
               }
           }
       }