diff --git a/main.py b/main.py
index ea6f2b3..155c32f 100644
--- a/main.py
+++ b/main.py
@@ -195,7 +195,17 @@ def end():
     print("--- End!")
 
 # IA
+def listNeeds():
+    N = []
+    # client, product
+    for c in range(C):
+        for p in range(P):
+            for cp in range(abs(Ci[c][p])):
+                N.append((c, p))
+    return N
+
 while t < 10:
+    N = listNeeds()
     newTurn()
 
 # Output