C3123121111331312121111331333132313331333133313331323133313132212331   >>    C312312111133131212111133133313231333133313331333132313331313221233   <<    C3123121111331312121111331333132313331333133313331323133313132212333   >>      C3123121111331312121111331333132313331333133313331323133313132212332   >>