B33113313132313113313223313331323133313221211331333131133132322333132313221   >>    B3311331313231311331322331333132313331322121133133313113313232233313231322   <<    B33113313132313113313223313331323133313221211331333131133132322333132313223   >>      B33113313132313113313223313331323133313221211331333131133132322333132313222   >>