Number Maximization

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문제 설명

예제3

문제

Everybody likes larger numbers since they come across as more powerful, more money, etc.

Given a number, determine the largest number that can be formed using the exact same digits as the given number.

입력

There is only one input line; it contains an integer between 0 and 999,999 (inclusive). Assume that the input number will not have leading 0’s. Note, however, that the input can be just the value 0.

출력

Print the largest number that can be formed using the exact same digits as the input number.