C111123313121111121111331333133313331322121111331333133313331312113313112131   >>    C11112331312111112111133133313331333132212111133133313331333131211331311213   <<    C111123313121111121111331333133313331322121111331333133313331312113313112133   >>      C111123313121111121111331333133313331322121111331333133313331312113313112132   >>