/in/foo.c:1:2: error: invalid preprocessing directive #inc10
    1 | #inc10
      |  ^~~~~
/in/foo.c:3:1: error: expected identifier or '(' before numeric constant
    3 | 23 45 655 67 3 2 454 98 53 10000lude <stdio.h>
      | ^~
/in/foo.c:3:28: error: invalid suffix "lude" on integer constant
    3 | 23 45 655 67 3 2 454 98 53 10000lude <stdio.h>
      |                            ^~~~~~~~~