C31232233133313221211113313331333131211113313231333132231331211   >>    C3123223313331322121111331333133313121111331323133313223133121   <<    C31232233133313221211113313331333131211113313231333132231331213   >>      C31232233133313221211113313331333131211113313231333132231331212   >>