B33113313132313113313223313331323133313223313231333131133132321133112113221   >>    B3311331313231311331322331333132313331322331323133313113313232113311211322   <<    B33113313132313113313223313331323133313223313231333131133132321133112113223   >>      B33113313132313113313223313331323133313223313231333131133132321133112113222   >>