C1111133313331323223313331333133313331323131211113313112333232311   >>    C111113331333132322331333133313331333132313121111331311233323231   <<    C1111133313331323223313331333133313331323131211113313112333232313   >>      C1111133313331323223313331333133313331323131211113313112333232312   >>