C31232233133313221211113313331333133313331212111112113313113313231333121121   >>    C3123223313331322121111331333133313331333121211111211331311331323133312112   <<    C31232233133313221211113313331333133313331212111112113313113313231333121123   >>      C31232233133313221211113313331333133313331212111112113313113313231333121122   >>