C111113331333132322331333133313331331121111121133132313232112323311   >>    C11111333133313232233133313331333133112111112113313231323211232331   <<    C111113331333132322331333133313331331121111121133132313232112323313   >>      C111113331333132322331333133313331331121111121133132313232112323312   >>