C1111133313331323223313331333133313331333131211113313331323133313331312123311   >>    C111113331333132322331333133313331333133313121111331333132313331333131212331   <<    C1111133313331323223313331333133313331333131211113313331323133313331312123313   >>      C1111133313331323223313331333133313331333131211113313331323133313331312123312   >>