B331322121123313232233132112323331323133313223313331333132313231313231311331   >>    B33132212112331323223313211232333132313331322331333133313231323131323131133   <<    B331322121123313232233132112323331323133313223313331333132313231313231311333   >>      B331322121123313232233132112323331323133313223313331333132313231313231311332   >>