C1111133313331323223313331333133313331323131211113313113212312131   >>    C111113331333132322331333133313331333132313121111331311321231213   <<    C1111133313331323223313331333133313331323131211113313113212312133   >>      C1111133313331323223313331333133313331323131211113313113212312132   >>