my_list=[] # list of records 
score_list=[]#list for scores to know target score
for _ in range(int(input())):
    name=input()
    score=float(input())
    my_list.append([name,score])
    score_list.append(score)


min_score=min(score_list) # know minimum score 
target_score = max(score_list) # put target score maximum value 
for value in score_list:
    # know the second minimum value (target)
    if value > min_score and value<target_score:
        target_score=value

target_names = [] # to put names has target score 
for item in my_list:
    if item[1] == target_score:
        target_names.append(item[0])

target_names.sort() # sort name alphabetically 
for x in target_names:
    print(x)