C31232233133313221211113313331333133313331212111133133322132322221   >>    C3123223313331322121111331333133313331333121211113313332213232222   <<    C31232233133313221211113313331333133313331212111133133322132322223   >>      C31232233133313221211113313331333133313331212111133133322132322222   >>