if __name__ == '__main__':
    names = []
    scores = []
    for _ in range(int(input())):
        name = input()
        score = float(input())
        #List of names
        names.append(name)
        #List of scores
        scores.append(score)
    # Save the second lowest score
    nd_low = sorted(list(set(scores)))[1]
    # The names and scores are in the same position in list, so...
    # Get the name that is in the same position of the second lowest score
    # and sort it
    result = sorted([
        name 
        for i, name in enumerate(names)
        if scores[i] == nd_low])
    # Print the result
    print(*result, sep="\n")

if __name__ == '__main__':
    student = []
    for _ in range(int(input())):
        name = input()
        score = float(input())
        student.append([name,score])
lowstudent =[]
low = 100
"""uplow is second lowest marks"""
uplow = 100
for s in student:
    if s[1] < low:
        uplow=low
        low = s[1]
for s in student:
    if s[1]==uplow:
        lowstudent.append(s[0])
lowstudent.sort()
for s in lowstudent:
    print(s)