C3132121111133313233121111331333133313331333133313331333133313223311212321   >>    C313212111113331323312111133133313331333133313331333133313331322331121232   <<    C3132121111133313233121111331333133313331333133313331333133313223311212323   >>      C3132121111133313233121111331333133313331333133313331333133313223311212322   >>