B33113313132313113313223313331323132322331323131333133313231323113312121   >>    B3311331313231311331322331333132313232233132313133313331323132311331212   <<    B33113313132313113313223313331323132322331323131333133313231323113312123   >>      B33113313132313113313223313331323132322331323131333133313231323113312122   >>