C1111133313331323223313331333133313113313121111331322121133131123313232213221   >>    C111113331333132322331333133313331311331312111133132212113313112331323221322   <<    C1111133313331323223313331333133313113313121111331322121133131123313232213223   >>      C1111133313331323223313331333133313113313121111331322121133131123313232213222   >>