foo.cc: In function 'int main()':
foo.cc:7:8: error: expected ';' before 'for'
    7 |  cin>>m
      |        ^
      |        ;
    8 |  for(int i=0;i<m;i++)
      |  ~~~    
foo.cc:8:14: error: 'i' was not declared in this scope
    8 |  for(int i=0;i<m;i++)
      |              ^

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