B33113313132313113313223313331323131323133313232233132211211311   >>    B3311331313231311331322331333132313132313331323223313221121131   <<    B33113313132313113313223313331323131323133313232233132211211313   >>      B33113313132313113313223313331323131323133313232233132211211312   >>