/in/foo.c: In function 'main':
/in/foo.c:5:9: error: 'inta' undeclared (first use in this function); did you mean 'int'?
    5 |         inta,b;
      |         ^~~~
      |         int
/in/foo.c:5:9: note: each undeclared identifier is reported only once for each function it appears in
/in/foo.c:5:14: error: 'b' undeclared (first use in this function)
    5 |         inta,b;
      |              ^
/in/foo.c:5:13: warning: left-hand operand of comma expression has no effect [-Wunused-value]
    5 |         inta,b;
      |             ^
/in/foo.c:6:23: error: 'a' undeclared (first use in this function)
    6 |         scanf("%d%d",&a,&b)
      |                       ^
/in/foo.c:6:28: error: expected ';' before 'printf'
    6 |         scanf("%d%d",&a,&b)
      |                            ^
      |                            ;
    7 |     printf("%d\n",a+b);
      |     ~~~~~~