foo.c: In function 'main':
foo.c:7:15: warning: too many arguments for format [-Wformat-extra-args]
    7 |         scanf("x1 x2",&first,&second);
      |               ^~~~~~~
foo.c:10:16: error: stray '\' in program
   10 |         x=first\second;
      |                ^
foo.c:10:16: error: expected ';' before 'second'
   10 |         x=first\second;
      |                ^~~~~~~
      |                ;
foo.c:12:12: warning: too many arguments for format [-Wformat-extra-args]
   12 |     printf("y1",s);
      |            ^~~~
foo.c:13:16: warning: too many arguments for format [-Wformat-extra-args]
   13 |         printf("y2",m);
      |                ^~~~
foo.c:14:16: warning: too many arguments for format [-Wformat-extra-args]
   14 |         printf("y3",d);
      |                ^~~~

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