[SW Expert Academy, SWEA 1936] 1대1 가위바위보 (python)

https://swexpertacademy.com/main/code/problem/problemDetail.do?problemLevel=1&contestProbId=AV5PjKXKALcDFAUq&categoryId=AV5PjKXKALcDFAUq&categoryType=CODE&problemTitle=&orderBy=FIRST_REG_DATETIME&selectCodeLang=ALL&select-1=1&pageSize=10&pageIndex=2

SW Expert Academy

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※ SW Expert 아카데미의 문제를 무단 복제하는 것을 금지합니다.

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a, b= map(int, input().split())

if {a : b} in [{1 : 3}, {2 : 1}, {3 : 2}]:
    print('A')
else:
    print('B')