C31232233133313221211113313331333133313113311331333133313331313331323223321   >>    C3123223313331322121111331333133313331311331133133313331333131333132322332   <<    C31232233133313221211113313331333133313113311331333133313331313331323223323   >>      C31232233133313221211113313331333133313113311331333133313331313331323223322   >>