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Common Permutation


ธธฐ„:A(A,B,C), „ณตฅ :ณดํ†ต(‚ฎŒ,ณดํ†ต,†’Œ),  ˆฒจ:1(1~4)
Time Limit : 4seconds , Memory Limit: 32MB

About CommonPermutation

‘ ฐœ˜ ฌธž—ด a, b€ –ดกŒ„ •Œ €ž˜ ˆœ„œ ฐ”ฟ”„œ a˜ €„ ฌธž—ด„ งŒ“ค ˆ˜ žˆณ , b˜ €„ ฌธž—ด„ งŒ“ค ˆ˜ žˆŠ” ฒƒ ค‘ €žฅ ธด ฌธž—ด x ถœ ฅํ•˜.

Input

ž… ฅ ํŒŒ—Š” —ฌŸฌ ฐœ˜ €ดŠค€ “ค–ดฐˆ ˆ˜ žˆœฉฐ ฐ €ดŠคŠ” ‘ ฐœ˜ —ฐ†œ „กœ ตฌ„œ‹ค. ฆ‰ ฒซฒˆงธ „ ‘ฒˆงธ „ด ํ•œ ํ…ŒŠคํŠธ €ดŠค ดฃจฉฐ „ฒˆงธ „ „ฒˆงธ „ด ˜ ‹คฅธ ํ…ŒŠคํŠธ €ดŠค ดฃจŠ” ‹ด‹ค. ฐ ํ–‰—Š” †Œฌธžกœ ดฃจ–ด„ ฌธž—ดด ํ•˜‚˜”ฉ “ค–ดžˆœฉฐ ํ•œ ํ…ŒŠคํŠธ €ดŠค ดฃจŠ” ฌธž—ด ค‘ ฒซฒˆงธ ฒƒ„ a, ‘ฒˆงธ ฒƒ„ bณ  ํ•˜ž. ฐ ฌธž—ด˜ ตœŒ€ ธธดŠ” 1,000€ž‹ค.

Output

ž… ฅœ ฐ ํ…ŒŠคํŠธ €ดŠคงˆ‹ค ํ•œ „”ฉ x ถœ ฅํ•œ‹ค. œ„˜ กฐ„ งŒํ•˜Š” x€ —ฌŸฌ ฐœ žˆœฉด •ŒํŒŒฒณ ˆœœกœ งจ •ž— žˆŠ” ฒƒ„ ถœ ฅํ•œ‹ค.

Sample Input

~cpp 
pretty
women
walking
down
the
street

Sample Output

~cpp 
e

nw

et

ํ’€ด

ž‘„ž ‚ฌšฉ–ธ–ด ฐœฐœ‹œ„ ฝ”“œ
ฌธณดฐฝ C++ 25„ CommonPermutation/ฌธณดฐฝ

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