B33113313132313113313223313331323331333132313321133133313331333132112322123221   >>    B3311331313231311331322331333132333133313231332113313331333133313211232212322   <<    B33113313132313113313223313331323331333132313321133133313331333132112322123223   >>      B33113313132313113313223313331323331333132313321133133313331333132112322123222   >>