C1111133313331323223313331333133313113313121111331322121133131123313233321   >>    C111113331333132322331333133313331311331312111133132212113313112331323332   <<    C1111133313331323223313331333133313113313121111331322121133131123313233323   >>      C1111133313331323223313331333133313113313121111331322121133131123313233322   >>