foo.cc: In function 'int main()':
foo.cc:25:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   25 |    scanf("%d", &op);
      |    ~~~~~^~~~~~~~~~~
foo.cc:30:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   30 |     scanf("%d%d",&X,&Y);
      |     ~~~~~^~~~~~~~~~~~~~

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Found 10 testcases.
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