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ZOJ Problem Set - 3168
Sort ZOJ7

Time Limit: 1 Second      Memory Limit: 32768 KB

Given a string of no more than 1000 characters. You are supposed to sort the characters into a substring of all Z's followed by O's, J's, 7's, and the rest of the other characters.

Input

Each case gives a string described by the problem. The string given contains no space.

Output

For each test case, output the resulting string. Note the order of the characters other than Z, O, J and 7 must be kept after sorting.

Sample Input

t7ZJ7OhO7B7O7irZtOhZdayJ77

Sample Output

ZZZOOOOJJ7777777thBirthday


Author: CHEN, Yue
Source: ZOJ 7th Anniversary Contest
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