C3132121111133313233121111331333133313331333133313331333133313221131211111   >>    C313212111113331323312111133133313331333133313331333133313331322113121111   <<    C3132121111133313233121111331333133313331333133313331333133313221131211113   >>      C3132121111133313233121111331333133313331333133313331333133313221131211112   >>