diff --git a/debug.lua b/debug.lua
index d5407a1..c23176c 100644
--- a/debug.lua
+++ b/debug.lua
@@ -63,7 +63,6 @@ end
 
 function sum(arr, lo, hi)
   local result = 0
-  print(#arr, lo, hi)
   for i=lo,hi do
     result = result + arr[i]
   end