foo.cc: In function 'int main()':
foo.cc:13:22: error: expected ')' before '\U0000ff09'
   13 | for(int i=1;i<=10;i++）
      |    ~                 ^~
      |                      )
foo.cc:13:22: error: '\U0000ff09' was not declared in this scope
   13 | for(int i=1;i<=10;i++）
      |                      ^~

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