C31232233133313221211113313331333133313331212111111331312112323321   >>    C3123223313331322121111331333133313331333121211111133131211232332   <<    C31232233133313221211113313331333133313331212111111331312112323323   >>      C31232233133313221211113313331333133313331212111111331312112323322   >>