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163C. Conveyor
Platinum V
์ •๋ ฌ๋‘ ํฌ์ธํ„ฐ๋ˆ„์  ํ•ฉ์Šค์œ„ํ•‘์ด๋ถ„ ํƒ์ƒ‰
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‘