C3132121111133313233121111331333133313331333133313331333132222211   >>    C313212111113331323312111133133313331333133313331333133313222221   <<    C3132121111133313233121111331333133313331333133313331333132222213   >>      C3132121111133313233121111331333133313331333133313331333132222212   >>