题解 | #牛牛的金币#
牛牛的金币
https://www.nowcoder.com/practice/35d8e3e569dc49f2a1018d1dc9186998
x,y = map(int,input().split(' ')) x1,y1 = map(int,input().split(' ')) if x1-x!=0: if x1-x>0: print('r') else: print('l') elif y1-y>0: print('u') else: print('d')