B33113313132313113313223313331323133313221211331333131133132322233121   >>    B3311331313231311331322331333132313331322121133133313113313232223312   <<    B33113313132313113313223313331323133313221211331333131133132322233123   >>      B33113313132313113313223313331323133313221211331333131133132322233122   >>