using System;
class Program
{
static void Main() {
int[] arr = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
for (int i = 0; i < arr.Length; i++) {
Console.Write("{0} ", arr[i]);
}
Console.WriteLine();
Array.Clear(arr, 3, 2);
for (int i = 0; i < arr.Length; i++) {
Console.Write("{0} ", arr[i]);
}
}
}
/*
run:
1 2 3 4 5 6 7 8 9
1 2 3 0 0 6 7 8 9
*/