/in/foo.c: In function 'main':
/in/foo.c:9:22: warning: format '%d' expects a matching 'int' argument [-Wformat=]
       printf("%d %d %d\n",b,a);
                      ^
/in/foo.c:12:23: warning: format '%d' expects a matching 'int' argument [-Wformat=]
        printf("%d %d %d\n",c,a);
                       ^
/in/foo.c:14:23: warning: format '%d' expects a matching 'int' argument [-Wformat=]
        printf("%d %d %d\n",a,c);
                       ^
/in/foo.c:18:22: warning: format '%d' expects a matching 'int' argument [-Wformat=]
       printf("%d %d %d\n",a,b);
                      ^
/in/foo.c:21:23: warning: format '%d' expects a matching 'int' argument [-Wformat=]
        printf("%d %d %d\n",c,b);
                       ^
/in/foo.c:23:23: warning: format '%d' expects a matching 'int' argument [-Wformat=]
        printf("%d %d %d\n",b,c);
                       ^