C3123121111331312121111331333132313331333133313232212111112211321   >>    C312312111133131212111133133313231333133313331323221211111221132   <<    C3123121111331312121111331333132313331333133313232212111112211323   >>      C3123121111331312121111331333132313331333133313232212111112211322   >>