题解 | 牛牛的金币
牛牛的金币
https://www.nowcoder.com/practice/35d8e3e569dc49f2a1018d1dc9186998
a,b=map(int,input().split())
c,d=map(int,input().split())
if a > c:
print('l')
elif a < c:
print('r')
else:
if b > d:
print('d')
else:
print('u')
