B33113313132313113313223313331323133313231313232233132313331323132211211313221   >>    B3311331313231311331322331333132313331323131323223313231333132313221121131322   <<    B33113313132313113313223313331323133313231313232233132313331323132211211313223   >>      B33113313132313113313223313331323133313231313232233132313331323132211211313222   >>