c-gcc, 55 bytes

Result

WA

Code [DL]

char s[1];main(){qsort(gets(s),100,1,strcmp);puts(s);}

stdin

2578394204487995417819971155672907023307979507226706436495323234707079703400517622822559556432833626

stdout

stderr

/tmp/code.c:1:11: warning: return type defaults to ‘int’ [-Wimplicit-int]
 char s[1];main(){qsort(gets(s),100,1,strcmp);puts(s);}
           ^
/tmp/code.c: In function ‘main’:
/tmp/code.c:1:18: warning: implicit declaration of function ‘qsort’ [-Wimplicit-function-declaration]
 char s[1];main(){qsort(gets(s),100,1,strcmp);puts(s);}
                  ^
/tmp/code.c:1:24: warning: implicit declaration of function ‘gets’ [-Wimplicit-function-declaration]
 char s[1];main(){qsort(gets(s),100,1,strcmp);puts(s);}
                        ^
/tmp/code.c:1:38: error: ‘strcmp’ undeclared (first use in this function)
 char s[1];main(){qsort(gets(s),100,1,strcmp);puts(s);}
                                      ^
/tmp/code.c:1:38: note: each undeclared identifier is reported only once for each function it appears in
/tmp/code.c:1:46: warning: implicit declaration of function ‘puts’ [-Wimplicit-function-declaration]
 char s[1];main(){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