/in/foo.c: In function 'main':
/in/foo.c:12:12: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
    scanf("%d",numb);
            ^
/in/foo.c:12:4: warning: 'numb' may be used uninitialized in this function [-Wmaybe-uninitialized]
    scanf("%d",numb);
    ^~~~~~~~~~~~~~~~
/in/foo.c:21:22: warning: 'sum2' may be used uninitialized in this function [-Wmaybe-uninitialized]
  printf("%d",abs(sum1-sum2));
                  ~~~~^~~~~
/in/foo.c:21:22: warning: 'sum1' may be used uninitialized in this function [-Wmaybe-uninitialized]