c-gcc, 53 bytes

Result

WA

Code [DL]

main(c,s){mcmp(qsort(gets(s),100,1,strcmp));puts(s);}

stdin

4325358433868491654569950271269218906816844574139430946365309040059757813815370458030302911069758392

stdout

stderr

/tmp/code.c:1:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
 main(c,s){mcmp(qsort(gets(s),100,1,strcmp));puts(s);}
 ^
/tmp/code.c: In function ‘main’:
/tmp/code.c:1:1: warning: type of ‘c’ defaults to ‘int’ [-Wimplicit-int]
/tmp/code.c:1:1: warning: type of ‘s’ defaults to ‘int’ [-Wimplicit-int]
/tmp/code.c:1:11: warning: implicit declaration of function ‘mcmp’ [-Wimplicit-function-declaration]
 main(c,s){mcmp(qsort(gets(s),100,1,strcmp));puts(s);}
           ^
/tmp/code.c:1:16: warning: implicit declaration of function ‘qsort’ [-Wimplicit-function-declaration]
 main(c,s){mcmp(qsort(gets(s),100,1,strcmp));puts(s);}
                ^
/tmp/code.c:1:22: warning: implicit declaration of function ‘gets’ [-Wimplicit-function-declaration]
 main(c,s){mcmp(qsort(gets(s),100,1,strcmp));puts(s);}
                      ^
/tmp/code.c:1:36: error: ‘strcmp’ undeclared (first use in this function)
 main(c,s){mcmp(qsort(gets(s),100,1,strcmp));puts(s);}
                                    ^
/tmp/code.c:1:36: note: each undeclared identifier is reported only once for each function it appears in
/tmp/code.c:1:45: warning: implicit declaration of function ‘puts’ [-Wimplicit-function-declaration]
 main(c,s){mcmp(qsort(gets(s),100,1,strcmp));puts(s);}
                                             ^
/home/esolang/bin/c-gcc: line 6: /tmp/code: No such file or directory
rm: cannot remove '/tmp/code': No such file or directory

strace