Fixing the VBA code

Push.xlsm
Attached is a sample file of what I am looking to accomplish.
On the sheet 'Enter' there is a button control to a VBA macro that allows the information entered into sheet'Enter' to tally onto sheet 'Tally 1'.
Also on sheet 'Enter' cell A10 says SHEET. I would like to enter the sheet name into cell C10 and have the VBA code add the information into the correct sheet. I am at a loss at to how to get the information to the correct sheet.

Sub tally()
Dim lrow As Long, i As Long

    With Worksheets(Worksheets("Enter").Range("C10").Value)
        lrow = .Range("A" & .Rows.Count).End(xlUp).Row
        For i = 2 To lrow
            .Range("B" & i).Value = .Range("B" & i).Value + Worksheets("Enter").Range("B" & i).Value
            Worksheets("Enter").Range("B" & i).Value = 0
        Next i
    End With
End Sub

Bob, you are the man. Worked perfectly. Thanks a lot.