diff --git a/main.py b/main.py
index deb1b13..514ee28 100644
--- a/main.py
+++ b/main.py
@@ -237,3 +237,15 @@ while t < 10:
 f = open(sys.argv[1] + 'o', 'w')
 f.write(str(len(Out)) + '\n' + '\n'.join(Out) + '\n')
 f.close()
+
+def SortCustomer():
+    CpSort = []
+    for i in range(0, len(Cp)):
+        CpSort.append((i, Cp[i], distance(Wp[0], Cp[i])))
+    CpSort.sort(key=lambda tup: tup[2])
+
+def WarehouseHasItems(w, items):
+    for i in range(0, len(items):
+        if Wi[w][items[i][0]] < items[i][1]:
+            return False
+    return True
\ No newline at end of file