单选题 有下面程序代码：
Private Sub Command1_Click( )
Dim a%(10)
For k = 1 To 9
a(k) = InputBox(" ")
Next. k
Call proc(a( ), 6, 3, 10)
For k = 1 To 10
Print a(k); " ";
Next k
End Sub
Private Sub proc(a%( ), x%, m%, n%)
For k = n To m + 1 Step -1
a(k) = a(k - 1)
Next k
a(k) = x
End Sub
Command1_Click过程运行时，从键盘输入9个数：12 32 65 34 87 56 79 50 52，则输出是______。