C3132121111133313233121111331333133313331333133313331333133313211231231   >>    C313212111113331323312111133133313331333133313331333133313331321123123   <<    C3132121111133313233121111331333133313331333133313331333133313211231233   >>      C3132121111133313233121111331333133313331333133313331333133313211231232   >>