C31232233133313221211113313331333133313331212111112113313113313231333133313111   >>    C3123223313331322121111331333133313331333121211111211331311331323133313331311   <<    C31232233133313221211113313331333133313331212111112113313113313231333133313113   >>      C31232233133313221211113313331333133313331212111112113313113313231333133313112   >>