ＶＢ题目求解

Private Sub Command1_Click()
   Dim x As Integer, y As Integer, z As Integer
   x = 1
   y = 2
   z = 3
   Call sun1(x, x, z)
   Call sun1(x, y, y)
   Print x; y; z
End Sub
Private Sub sun1(a As Integer, b As Integer, c As Integer)
   Static i As Integer
   i = a + c + i
   a = 3 * c + i
   b = 2 * c + i
   c = a + b + i
   Print a; b; c
End Sub

第一行和第三行的输出结果　　答案是7   7   17     和  18    46   17 

为何我算出来是10   10  24    和  22    38   24··　　　求解