C31232233133313221211113313331333133313113311331211111333131121211   >>    C3123223313331322121111331333133313331311331133121111133313112121   <<    C31232233133313221211113313331333133313113311331211111333131121213   >>      C31232233133313221211113313331333133313113311331211111333131121212   >>