Two Sum II - Input Array Is Sorted

using System;
using System.Collections.Generic;

namespace test
{
    class Program
    {
        public static int[] TwoSum(int[] numbers, int target)
        {
            if (numbers.Length == 2)
            {
                return new int[]{1, 2};
            }

            int min = 0, max = numbers.Length - 1, temp = 0;
            while (numbers[min] + numbers[max] != target)
            {
                if ((numbers[min] + numbers[max]) > target)
                    max--;
                else
                    min++;
            }           
            return new int[]{min + 1, max + 1};
        }
        public static void Main(string[] args)
        {
            int[] a = { 2, 7, 11, 15 };
            int b = 9;
            int[] c = TwoSum(a, b);
            Console.WriteLine("[{0}]", string.Join(", ", c));
        }
    }
}