C3132121111133313233121111331333133313331333133313331333131133133313132221   >>    C313212111113331323312111133133313331333133313331333133313113313331313222   <<    C3132121111133313233121111331333133313331333133313331333131133133313132223   >>      C3132121111133313233121111331333133313331333133313331333131133133313132222   >>