B33113313132313113313223313331323133313232233121133133313331333131122112311331   >>    B3311331313231311331322331333132313331323223312113313331333133313112211231133   <<    B33113313132313113313223313331323133313232233121133133313331333131122112311333   >>      B33113313132313113313223313331323133313232233121133133313331333131122112311332   >>