Python3 PTA乙1032挖掘机技术哪家强 （最后一个测试点超时）

N = int(input())
list_data = []
for i in range(N):
	dic = {}
	num, score = input().split()
	for item in list_data:
		if num == item["num"]:
			item["score"] += int(score)
			break
	else:
		dic['num'] = num
		dic['score'] = int(score)
		list_data.append(dic)
num_max = ''
score_max = 0
for item in list_data:
	if item["score"] > score_max:
		score_max = item["score"]
		num_max = item["num"]
print("%s %d" %(num_max, score_max))