B33113313132313113313223313331323133313223313231333133313221231211111323121   >>    B3311331313231311331322331333132313331322331323133313331322123121111132312   <<    B33113313132313113313223313331323133313223313231333133313221231211111323123   >>      B33113313132313113313223313331323133313223313231333133313221231211111323122   >>