출생년도 예측
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📃 해결할 문제
💻 입력
🖨️ 출력
💻 예제 입력 1
4 Mildred born in previous Dragon year from Bessie Gretta born in previous Monkey year from Mildred Elsie born in next Ox year from Gretta Paulina born in next Dog year from Bessie
🖨️ 예제 출력 1
12
💡 힌트
출처: USACO 2021 February Contest, Bronze Problem 1. Year of the Cow