C31232233133313221211113313331333133313331212111133332113211211   >>    C3123223313331322121111331333133313331333121211113333211321121   <<    C31232233133313221211113313331333133313331212111133332113211213   >>      C31232233133313221211113313331333133313331212111133332113211212   >>