C31232233133313221211113313331333132313331333133313331333133313331323221222231   >>    C3123223313331322121111331333133313231333133313331333133313331333132322122223   <<    C31232233133313221211113313331333132313331333133313331333133313331323221222233   >>      C31232233133313221211113313331333132313331333133313331333133313331323221222232   >>