C1111133313331323223313331333133313112331323331323133313232233313111   >>    C111113331333132322331333133313331311233132333132313331323223331311   <<    C1111133313331323223313331333133313112331323331323133313232233313113   >>      C1111133313331323223313331333133313112331323331323133313232233313112   >>