C3132121111133313233121111331333133313331333133313331333133313331333221323121   >>    C313212111113331323312111133133313331333133313331333133313331333133322132312   <<    C3132121111133313233121111331333133313331333133313331333133313331333221323123   >>      C3132121111133313233121111331333133313331333133313331333133313331333221323122   >>