C111113331333132322331333133313331333133313121111331331121313311   >>    C11111333133313232233133313331333133313331312111133133112131331   <<    C111113331333132322331333133313331333133313121111331331121313313   >>      C111113331333132322331333133313331333133313121111331331121313312   >>