C111123313121111121111331333132313331323133313331322333121133133313231211231   >>    C11112331312111112111133133313231333132313331333132233312113313331323121123   <<    C111123313121111121111331333132313331323133313331322333121133133313231211233   >>      C111123313121111121111331333132313331323133313331322333121133133313231211232   >>