if __name__ == '__main__':
students = []
marksList = []
for _ in range(int(input())):
    name = input()
    marks = float(input())

    students.append([name, marks])
    marksList.append(marks)

secondLowestScore = sorted(set(marksList))[1]

x = [sname for sname, marks in students if marks == secondLowestScore]

for _ in sorted(x):
    print(_)