C111113331333132322331333133313331333133313121111331331121111132313311   >>    C11111333133313232233133313331333133313331312111133133112111113231331   <<    C111113331333132322331333133313331333133313121111331331121111132313313   >>      C111113331333132322331333133313331333133313121111331331121111132313312   >>