B33113313132313113313223313331323132322331323131333133313231323232212121   >>    B3311331313231311331322331333132313232233132313133313331323132323221212   <<    B33113313132313113313223313331323132322331323131333133313231323232212123   >>      B33113313132313113313223313331323132322331323131333133313231323232212122   >>