Modifying Macro - Pasting Over Row Of Data

Macro (see below).

I have two sheets 1) ap modified 2) gl download

It's merging the two sheets together. however, it's pasting over the last row of data. For example, gl download has data from row 4 to row 100. The Macro is pasting data from ap modified starting in row 100 of gl download instead of row 101. How can i correct this?

Sub C_Merge()
Dim w1 As Worksheet, w2 As Worksheet
Set w1 = Sheets("ap modified")
Set w2 = Sheets("gl download")
Dim lr1 As Long, lr2 As Long

[Code] .........