B33113313132313113313223313331323133313223313231333133112111113221312121   >>    B3311331313231311331322331333132313331322331323133313311211111322131212   <<    B33113313132313113313223313331323133313223313231333133112111113221312123   >>      B33113313132313113313223313331323133313223313231333133112111113221312122   >>