foo.cc:145:4: warning: "/*" within comment [-Wcomment]
  145 |  } /*
      |     
foo.cc: In function 'int main()':
foo.cc:280:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  280 |   scanf("%d,%d,%d",&x,&y,&z);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~

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