C111112111133131121133133313331333133313121111331322121111121111331323223311321   >>    C11111211113313112113313331333133313331312111133132212111112111133132322331132   <<    C111112111133131121133133313331333133313121111331322121111121111331323223311323   >>      C111112111133131121133133313331333133313121111331322121111121111331323223311322   >>