/in/foo.c: In function 'main':
/in/foo.c:6:10: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'long int *' [-Wformat=]
  scanf("%d%d",&a,&b);
         ~^    ~~
         %ld
/in/foo.c:6:12: warning: format '%d' expects argument of type 'int *', but argument 3 has type 'long int *' [-Wformat=]
  scanf("%d%d",&a,&b);
           ~^     ~~
           %ld
/in/foo.c:7:14: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long int' [-Wformat=]
     printf("%d\n",a+b);
             ~^    ~~~
             %ld