diff --git a/graphes/leaudibidon/main.py b/graphes/leaudibidon/main.py
index e69de29..44a067c 100644
--- a/graphes/leaudibidon/main.py
+++ b/graphes/leaudibidon/main.py
@@ -0,0 +1,31 @@
+class leaudibidon(object):
+
+    def __init__(self,capacity):
+        self.capacity = capacity
+        self.quantity = 0
+
+    def fullfill_b5(b5,b3):
+        b5.quantity = b5.capacity
+        print("Fullfill b5")
+
+    def fullfill_b3(b5,b3):
+        b3.quantity = b3.capacity
+        print("Fullfill b3")
+
+    def void_b5(b5,b3):
+        b5.quantity = 0
+        print("void b5")
+
+
+    def void_b3(b5,b3):
+        b3.quantity = 0
+        print("void b3")
+
+    def transfer_b5_b3(b5,b3):
+        transfer_amount = min(b5.quantity, b3.capacity - b3.quantity)
+        b5.quantity, b3.quantity = b5.quantity - transfer_amount, b3.quantity + transfer_amount
+    
+    
+    def transfer_b5_b3(b5,b3):
+        transfer_amount = min(b3.quantity, b5.capacity - b5.quantity)
+        b5.quantity, b3.quantity = b5.quantity + transfer_amount, b3.quantity - transfer_amount
\ No newline at end of file