C3123223313331322121111331333133313231333132212111112112113121331   >>    C312322331333132212111133133313331323133313221211111211211312133   <<    C3123223313331322121111331333133313231333132212111112112113121333   >>      C3123223313331322121111331333133313231333132212111112112113121332   >>