/in/foo.c: In function 'main':
/in/foo.c:8:11: warning: format '%ld' expects argument of type 'long int *', but argument 2 has type 'long long int *' [-Wformat=]
  scanf("%ld",&a);
           ^
/in/foo.c:9:11: warning: format '%ld' expects argument of type 'long int *', but argument 2 has type 'long long int *' [-Wformat=]
  scanf("%ld",&b);
           ^
/in/foo.c:10:14: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
     printf("%d",a+b);
              ^