If I Mod 2= 0 Then
a(i) = Mid(s, i, 1)
Else
a(Len(s) - i + 1) = Mid(s, i, 1)
End If
Next i
B . For i = 1 To Len(s)If i Mod 2= 0 Then
a(Len(s) - i+1) = Mid(s, i, 1)
Else
a(i) = Mid(s, Len(s) - i+1, 1)
End If
Next i
C . For i = 1 To Len(s)If i Mod 2 = 1 Then
a(i) = Mid(s, i, 1)
Else
a(Len(s) - i+1) = Mid(s, i, 1)
End If
Next i
D . For i= 1 To Len(s)If i Mod 2 = 1 Then
a(i) = Mid(s, i, 1)
Else
a(Len(s) - i+1) =Mid(s, Len(s) - i+1, 1)
End If
Next i