C3123223313331322121111331333133313331311331133133313113313231312121   >>    C312322331333132212111133133313331333131133113313331311331323131212   <<    C3123223313331322121111331333133313331311331133133313113313231312123   >>      C3123223313331322121111331333133313331311331133133313113313231312122   >>