/in/foo.c: In function 'main':
/in/foo.c:11:9: error: 'ruturn' undeclared (first use in this function)
   11 |         ruturn 0;
      |         ^~~~~~
/in/foo.c:11:9: note: each undeclared identifier is reported only once for each function it appears in
/in/foo.c:11:15: error: expected ';' before numeric constant
   11 |         ruturn 0;
      |               ^~
      |               ;