foo.c: In function 'main':
foo.c:14:2: error: expected ';' at end of input
  return 0
  ^~~~~~
foo.c:14:2: error: expected declaration or statement at end of input
foo.c:7:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ^~~~~~~~~~~~~~

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