C3123223313331322121111331333133313231333132212111133133313132313331233112121   >>    C312322331333132212111133133313331323133313221211113313331313231333123311212   <<    C3123223313331322121111331333133313231333132212111133133313132313331233112123   >>      C3123223313331322121111331333133313231333132212111133133313132313331233112122   >>