C31232233133313221211113313331333131211113313231333133112111211231   >>    C3123223313331322121111331333133313121111331323133313311211121123   <<    C31232233133313221211113313331333131211113313231333133112111211233   >>      C31232233133313221211113313331333131211113313231333133112111211232   >>