C3132121111133313233121111331333133313331333133313331333133313331333231121121   >>    C313212111113331323312111133133313331333133313331333133313331333133323112112   <<    C3132121111133313233121111331333133313331333133313331333133313331333231121123   >>      C3132121111133313233121111331333133313331333133313331333133313331333231121122   >>