python1, 34 bytes

Result

WA

Code [DL]

print(str().join(sorted(input())))

stdin

1756985623901424685847820578716688315724143319267508784447295540610425388951184982605361955680010137

stdout

stderr

Traceback (innermost last):
  File "/volume/CODE", line 1
    print(str().join(sorted(input())))
TypeError: illegal argument type for built-in operation

strace