程序界面如图所示，当单击“求解”按钮Command1时，在列表框List1中显示所有满足条件的组合。

程序代码如下，请在划线处填上合适的代码。

Dim a(0 To 9) As Integer

Private Sub Command1_Click()

 Dim i, n, m As Integer

 For i = 123 To 333

  For n = 1 To 9

   a(n) = 0

 Next n

 s = 0

 call fenjie (i)    ‘使用call调用自定义过程,下同

 call fenjie (2 *i)

 call fenjie (3 *i)

 For m = 1 To 9

  s ={#blank#}1{#/blank#}

 Next m

  If s = 9 Then List1.AddItem i & “ ” & 2 * i & “ ” & 3 * i

 Next i

 End Sub

Sub fenjie(x As Integer)    ‘自定义过程,将3位数分解并修改对应下标元素的值

 a(x Mod 10) = 1

 {#blank#}2{#/blank#}

 a(x \ 100) = 1

End Sub

a = 1

For p=1 to 50

   If  p Mod 3 = 0  Then  a = a + 1

Next p

Dim c As Integer,a(0 To 5) As Integer

For i = 1 To 5

  a(i) = i

Next i

c = 0

For i = 1 To 5

  x = Int(Rnd * 5 + 1)

  If a(x Mod 5) = i + 2 Then c = c + 1

  If c = x Then Exit For

  i = i - 1

Next i

运行该程序后，变量c的值不可能是（  ）