B33113313132313113313223313331323133313232233121133133313331333131122112311131   >>    B3311331313231311331322331333132313331323223312113313331333133313112211231113   <<    B33113313132313113313223313331323133313232233121133133313331333131122112311133   >>      B33113313132313113313223313331323133313232233121133133313331333131122112311132   >>