int t;            
            int nums = new int { 9, 3, 6, 5, 2 };
            for (int i = 0; i < 4; i++)
            {
                for (int j = i + 1; j < 5; j++)
                {
                    if(nums[i]>nums[j])
                    {
                        t = nums[i];
                        nums[i] = nums[j];
                        nums[j] = t;
                    }
                }

             }

            int c=0;
            foreach (int a in nums)
            {
                Console.WriteLine(nums[c]);
                c++;
            }