B33113313132313113313223313331323133313221211331333133313331313213312121   >>    B3311331313231311331322331333132313331322121133133313331333131321331212   <<    B33113313132313113313223313331323133313221211331333133313331313213312123   >>      B33113313132313113313223313331323133313221211331333133313331313213312122   >>