foo.cc: In function 'int main()':
foo.cc:9:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    9 |     scanf("%d %d %d",a,a+1,a+2);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~

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Found 10 testcases.
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