Order two Strings

Write a program that reads several pairs of strings, and prints each pair in lexicographic order.

Recall that the comparison operator $<$ in Python is defined for strings as the lexicographic order, that is, the expression $s<t$ evaluates to True if $s$ is lexicographically smaller than $t$ .

Input

The input has several cases, each consisting of a pair of strings $s$ and $t$ .

Output

For each case, you have to write a line with $s$ and $t$ in lexicographical order, separated by a whitespace

Problem information

Author: AP1

Generation: 2026-01-25T17:26:59.900Z