C3132121111133313233121111331333133313331333133313331333132333132233121   >>    C313212111113331323312111133133313331333133313331333133313233313223312   <<    C3132121111133313233121111331333133313331333133313331333132333132233123   >>      C3132121111133313233121111331333133313331333133313331333132333132233122   >>