diff --git a/main.py b/main.py
index d6121f1..deb1b13 100644
--- a/main.py
+++ b/main.py
@@ -198,6 +198,9 @@ def end():
     print("--- End!")
 
 # IA
+Dt = [[] for d in range(D)) # Drone tasks
+# (client, product)
+
 def nearestW(p, pos):
     minDist = math.inf
     selW = None
@@ -209,6 +212,12 @@ def nearestW(p, pos):
                 selW = w
     return selW
 
+def listItems(d):
+    items = []
+    for p in range(P):
+        for cp in range(abs(Di[d][p])):
+            items.append(p)
+    return items
 
 def listNeeds():
     N = []