/in/foo.c: In function 'main':
/in/foo.c:6:11: warning: unknown conversion type character 0x20 in format [-Wformat=]
  scanf("d% d%",&x1,&x2);
           ^
/in/foo.c:6:13: warning: spurious trailing '%' in format [-Wformat=]
  scanf("d% d%",&x1,&x2);
             ^
/in/foo.c:6:8: warning: too many arguments for format [-Wformat-extra-args]
  scanf("d% d%",&x1,&x2);
        ^~~~~~~
/in/foo.c:10:12: warning: unknown conversion type character 0xa in format [-Wformat=]
  printf("d%\n",y1);
            ^
/in/foo.c:10:9: warning: too many arguments for format [-Wformat-extra-args]
  printf("d%\n",y1);
         ^~~~~~
/in/foo.c:11:15: warning: unknown conversion type character 0xa in format [-Wformat=]
     printf("d%\n",y2);
               ^
/in/foo.c:11:12: warning: too many arguments for format [-Wformat-extra-args]
     printf("d%\n",y2);
            ^~~~~~
/in/foo.c:12:15: warning: unknown conversion type character 0xa in format [-Wformat=]
     printf("d%\n",y3);
               ^
/in/foo.c:12:12: warning: too many arguments for format [-Wformat-extra-args]
     printf("d%\n",y3);
            ^~~~~~