node, 51 bytes

Result

WA

Code [DL]

f=require(`fs`);f.write(0,f.readFileSync(0).sort())

stdin

2648667132557118129856101028099626392343981000800163762028241805229232412494980696135969464596855935

stdout

stderr

(node:5) DeprecationWarning: Calling an asynchronous function without callback is deprecated.
fs.js:92
      throw err;  // Forgot a callback but don't know where? Use NODE_DEBUG=fs
      ^

Error: EBADF: bad file descriptor, write

strace