foo.c: In function 'main':
foo.c:19:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
   19 |     gets(a);
      |     ^~~~
In file included from foo.c:1:
/nix/store/mrgib0s2ayr81xv1q84xsjg8ijybalq3-glibc-2.38-27-dev/include/stdio.h:663:14: note: declared here
  663 | extern char *gets (char *__s) __wur __attribute_deprecated__;
      |              ^~~~
foo.c:20:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
   20 |     gets(b);
      |     ^~~~
/nix/store/mrgib0s2ayr81xv1q84xsjg8ijybalq3-glibc-2.38-27-dev/include/stdio.h:663:14: note: declared here
  663 | extern char *gets (char *__s) __wur __attribute_deprecated__;
      |              ^~~~
/nix/store/1fn92b0783crypjcxvdv6ycmvi27by0j-binutils-2.40/bin/ld: /tmp/ccSQzUbb.o: in function `main':
foo.c:(.text.startup+0xd): warning: the `gets' function is dangerous and should not be used.

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