C3132121111133313233121111331333133313331333133313331333133313113313311221   >>    C313212111113331323312111133133313331333133313331333133313331311331331122   <<    C3132121111133313233121111331333133313331333133313331333133313113313311223   >>      C3132121111133313233121111331333133313331333133313331333133313113313311222   >>