문제
씬디는 애너그램(anagram) 프로그램을 만들어 줄 수 있는 남자를 좋아한다. 참고로 씬디는 매우 예쁘다.
애너그램 프로그램이란, 입력받은 영단어의 철자들로 만들 수 있는 모든 단어를 출력하는 것이다. 가령 "abc" 를 입력받았다면, "abc", "acb", "bac", "bca", "cab", "cba" 를 출력해야 한다.
입력받은 단어내에 몇몇 철자가 중복될 수 있다. 이 경우 같은 단어가 여러번 만들어 질 수 있는데, 한 번만 출력해야 한다. 또한 출력할 때에 알파벳 순서로 출력해야 한다.
출력
N개의 영단어에 대한 모든 가능한 애너그램을 출력한다. 각각의 영단어에 대한 애너그램을 출력할 때, 알파벳 순서로 중복되지 않게 출력한다.
예제 출력 1
abc
acb
bac
bca
cab
cba
aabc
aacb
abac
abca
acab
acba
baac
baca
bcaa
caab
caba
cbaa
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