C1111133313331323223313331333133313231333131211113313223313113311   >>    C111113331333132322331333133313331323133313121111331322331311331   <<    C1111133313331323223313331333133313231333131211113313223313113313   >>      C1111133313331323223313331333133313231333131211113313223313113312   >>