public static void Main()
var length = new int[] {1, 2, 3, 4, 5};
Console.WriteLine("the array length is " + length.Length);
Console.WriteLine("length");
for(var i = 0; i < length.Length; i++) {
Console.WriteLine(length[i]);
Console.WriteLine("lengthMinusOne");
for(var i = 0; i < length.Length - 1; i++) {
Console.WriteLine(length[i]);