foo.c: In function 'main':
foo.c:8:5: error: expected '(' before 'a'
    8 |  if a<b;
      |     ^
      |     (
foo.c:8:5: warning: statement with no effect [-Wunused-value]
foo.c:7:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
    7 |  scanf("%d%d",&a,&b);
      |  ^~~~~~~~~~~~~~~~~~~

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