if __name__ == '__main__':
    
    N = int(input())
    records = []
    scores = []
    
    if 2 <= N <= 5:
        for _ in range(N):
            name = input()
            score = float(input())
            records.append([name, score]) 
            scores.append(score) 
    else:
        print("Invalid!")
     
    #remove duplicates, sort them and get the second lowest value
    second_lowest_score = sorted(set(scores))[1]  
    
    #extract names of students who have the second lowest score
    second_lowest_name = [name for name, score in records if score ==               
                          second_lowest_score]
                          
    second_lowest_name.sort()
    print(*second_lowest_name, sep="\n") #unpacking