C111123313121111121111331333132313331323133313331123313223332211   >>    C11112331312111112111133133313231333132313331333112331322333221   <<    C111123313121111121111331333132313331323133313331123313223332213   >>      C111123313121111121111331333132313331323133313331123313223332212   >>