C31232233133313221211113313331333133313331212111133133322133313321   >>    C3123223313331322121111331333133313331333121211113313332213331332   <<    C31232233133313221211113313331333133313331212111133133322133313323   >>      C31232233133313221211113313331333133313331212111133133322133313322   >>