C3132121111133313233121111331333133313331333133313331333133313232121123231   >>    C313212111113331323312111133133313331333133313331333133313331323212112323   <<    C3132121111133313233121111331333133313331333133313331333133313232121123233   >>      C3132121111133313233121111331333133313331333133313331333133313232121123232   >>