php, 51 bytes

Result

WA

Code [DL]

<?php $a=readline().str_split();sort($a);echo ""+$a

stdin

4382726911215611840334430526730048338829863748767115646940125469281975894536544814838796638095580276

stdout

stderr

PHP Parse error:  syntax error, unexpected end of file, expecting ',' or ';' in /volume/CODE on line 1

strace