C3123223313331322121111331333133313231333132212111112113313222331221   >>    C312322331333132212111133133313331323133313221211111211331322233122   <<    C3123223313331322121111331333133313231333132212111112113313222331223   >>      C3123223313331322121111331333133313231333132212111112113313222331222   >>