题解 | 斗兽棋

# 定义吃的关系：key吃value
rules = {
    "elephant": "tiger",
    "tiger": "cat", 
    "cat": "mouse",
    "mouse": "elephant"
}

s1, s2 = input().split()

if rules[s1] == s2:  # 牛牛吃牛妹 rules[s1]得出value查看value是否是s2
    print("win")
elif rules[s2] == s1:  # 牛妹吃牛牛
    print("lose")
else:  # 平局（包括相同棋子）
    print("tie")