public static void Test()
{
Solution s = new Solution();
int[] A = new[] { 9, 9, 9, 9, 9, 9, 9, 9, 9, 9 };
int K = 1;
s.AddToArrayForm(A, K).PrintList();
int[] A2 = new[] { 1, 2, 0, 0 };
int K2 = 34;
s.AddToArrayForm(A2, K2).PrintList();
int[] A3 = new[] { 1, 2, 6, 3, 0, 7, 1, 7, 1, 9, 7, 5, 6, 6, 4, 4, 0, 0, 6, 3 };
int K3 = 516;
s.AddToArrayForm(A3, K3).PrintList();
}