diff --git a/seq_cutting.py b/seq_cutting.py
index 620503f1de6c542482ea49a0d9d20d52b62a99c7..c55e30310cdd16e03d1e955e190d21e54eee9697 100644
--- a/seq_cutting.py
+++ b/seq_cutting.py
@@ -29,13 +29,13 @@ def cut(seq, format):
     l = len(seq)
     if format == 'alphabetical':
         for i in range(l):
-            if seq[i] == 'A' or seq[i] == 'L':
+            if seq[i] == 'R' or seq[i] == 'K':
                 if i < l - 1 and seq[i + 1] != 'P':
                     cuts.append(i + 1)
 
     if format == 'numerical':
         for i in range(l):
-            if seq[i] == 1 or seq[i] == 10:
+            if seq[i] == 15 or seq[i] == 9:
                 if i < l - 1 and seq[i + 1] != 13:
                     cuts.append(i + 1)
     return cuts