foo.c: In function 'main':
foo.c:40:5: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   40 |     scanf("%d %d %d", &x, &y, &z);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foo.c:43:9: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   43 |         scanf("%d", &a[i]);
      |         ^~~~~~~~~~~~~~~~~~
foo.c:46:9: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   46 |         scanf("%d", &b[i]);
      |         ^~~~~~~~~~~~~~~~~~
foo.c:49:9: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   49 |         scanf("%d", &c[i]);
      |         ^~~~~~~~~~~~~~~~~~

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