C31232233133313221211113313331333133313331212111133112113313331322112112211211   >>    C3123223313331322121111331333133313331333121211113311211331333132211211221121   <<    C31232233133313221211113313331333133313331212111133112113313331322112112211213   >>      C31232233133313221211113313331333133313331212111133112113313331322112112211212   >>