checking a new container recursively: only called if container was modified through addItem
Simple object orange weighs 1
Simple object pencil weighs 1
 checking a new container recursively: only called if container was modified through addItem
 checking a new container recursively: only called if container was modified through addItem
Simple object kiwi weighs 1
Container Container 3 weighs 1
Simple object apple weighs 1
Container Container 2 weighs 2
Container Container 1 weighs 4
 done with Container c1 =========================
 checking a new container recursively: only called if container was modified through addItem
 cached value used 
 cached value used 
 cached value used 
Simple object banana weighs 1
Container Container 1 weighs 5
 done with Container c1 =========================