C3132121111133313233121111331333133313331333133313331333133313233211111333131   >>    C313212111113331323312111133133313331333133313331333133313331323321111133313   <<    C3132121111133313233121111331333133313331333133313331333133313233211111333133   >>      C3132121111133313233121111331333133313331333133313331333133313233211111333132   >>