C3132121111133313233121111331333133313331312121111331333133322331123311   >>    C313212111113331323312111133133313331333131212111133133313332233112331   <<    C3132121111133313233121111331333133313331312121111331333133322331123313   >>      C3132121111133313233121111331333133313331312121111331333133322331123312   >>