charsAndNumbers

        char[] chars = new char [26];
            int[] numbers = new int [26];
            for (int i = 0; i < 26; i++)
            {
                chars[i] = Convert.ToChar(i+65);
            }
            int count = 0;
            for (char i = 'A'; i <= 'Z'; i++)
            {

                numbers [count] = (((byte)i) - 64);
                count++;
            }
            for (int i = 0; i < 26; i++)
            {
                Console.Write(chars[i]+" ");
                Console.Write(numbers[i] +" ");
            }