1500B. Two chandeliers
Platinum IV
์ด๋ถ„ ํƒ์ƒ‰๋ธŒ๋ฃจํŠธํฌ์Šค ์•Œ๊ณ ๋ฆฌ์ฆ˜์ˆ˜ํ•™์ •์ˆ˜๋ก ์œ ํด๋ฆฌ๋“œ ํ˜ธ์ œ๋ฒ•์ค‘๊ตญ์ธ์˜ ๋‚˜๋จธ์ง€ ์ •๋ฆฌํ™•์žฅ ์œ ํด๋ฆฌ๋“œ ํ˜ธ์ œ๋ฒ•
Codeforces

์ด ๋ฌธ์ œ์— ๋Œ€ํ•œ ๊ฐ€์ด๋“œ

์•„์ง ์ž‘์„ฑ๋œ ๊ฐ€์ด๋“œ๊ฐ€ ์—†์Šต๋‹ˆ๋‹ค.

์ด ๋ฌธ์ œ๋ฅผ ํฌํ•จํ•˜๋Š” ๋ฌธ์ œ์ง‘