Example 1-61. A complex if statement

void Check(char input)
{
    if (input == 'a'
        || input == 'e'
        || input == 'i'
        || input == 'o'
        || input == 'u')
    {
        Console.WriteLine("Input is a vowel");
    }
    else
    {
        Console.WriteLine("Input is a consonant");
    }
}