diff --git a/main.py b/main.py
index 703ae20..773a67a 100644
--- a/main.py
+++ b/main.py
@@ -9,7 +9,7 @@ INPUT = os.environ.get("INPUT", "./testdata/input.pdf")
 def main():
    print("main")
    with pdfplumber.open(INPUT) as pdf:
-      for page in pdf.pages[4:5]:
+      for page in pdf.pages[:]:
          for splitpage in v_split(page):
             print(splitpage.extract_text())
    print("/main")
@@ -35,8 +35,8 @@ def debug_show(im):
 
 def v_split(page):
    clusters = cluster(page)
-   points = [i.x0 for i in clusters]
-   points += [i.x1 for i in clusters]
+   points = [i.x0 for i in clusters if i.x0 > page.width//4]
+   points += [i.x1 for i in clusters if i.x1 < 3*page.width//4]
    x_clusters = []
    for point in points:
       merged = False
@@ -47,9 +47,14 @@ def v_split(page):
       if not merged:
          x_clusters.append(point)
    x_clusters = sorted(x_clusters)
-   if len(x_clusters) != 4:
+   if DEBUG:
+      im = debug_im(page)
+      for x_cluster in x_clusters:
+         im.draw_line(((x_cluster, 0), (x_cluster, page.height)))
+      debug_show(im)
+   if len(x_clusters) != 2:
       return [page]
-   x = (x_clusters[2] + x_clusters[1]) / 2
+   x = sum(x_clusters) / len(x_clusters)
    result = [page.within_bbox((0, 0, x, page.height)), page.within_bbox((x, 0, page.width, page.height))]
    if DEBUG:
       for page in result: