C3132121111133313233121111331333133313331333133313331333131133133112121   >>    C313212111113331323312111133133313331333133313331333133313113313311212   <<    C3132121111133313233121111331333133313331333133313331333131133133112123   >>      C3132121111133313233121111331333133313331333133313331333131133133112122   >>