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An anagram of a string is any string that can be formed using the same letters as the original. (We consider the original string an anagram of itself as well.) For example, the string
ACM has the following 6 anagrams, as given in alphabetical order:
ACM AMC CAM CMA MAC MCA
As another example, the string
ICPC has the following 12 anagrams (in alphabetical order):
CCIP CCPI CICP CIPC CPCI CPIC ICCP ICPC IPCC PCCI PCIC PICC
Given a string and a rank K, you are to determine the Kth such anagram according to alphabetical order.
Each test case will be designated on a single line containing the original word followed by the desired rank K. Words will use uppercase letters (i.e.,
Z) and will have length at most 16. The value of K will be in the range from 1 to the number of distinct anagrams of the given word. A line of the form "
# 0" designates the end of the input.
Warning: The value of K could be almost 245 in the largest tests, so you should use type
long in Java, or type
long long in C++ to store K.
For each test, display the Kth anagram of the original string.
ACM 5 ICPC 12 REGION 274 # 0
MAC PICC IGNORE