foo.c: In function ‘main’:
foo.c:7:17: warning: format ‘%d’ expects argument of type ‘int *’, but argument 2 has type ‘long int *’ [-Wformat=]
    7 |         scanf("%d",&a);
      |                ~^  ~~
      |                 |  |
      |                 |  long int *
      |                 int *
      |                %ld
foo.c:13:14: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long int’ [-Wformat=]
   13 |     printf("%d",b);
      |             ~^  ~
      |              |  |
      |              |  long int
      |              int
      |             %ld