B33113313132313113313223313331323133313223313231333133313231312133313221231   >>    B3311331313231311331322331333132313331322331323133313331323131213331322123   <<    B33113313132313113313223313331323133313223313231333133313231312133313221233   >>      B33113313132313113313223313331323133313223313231333133313231312133313221232   >>