students = []
grades = []
if __name__ == '__main__':
    for _ in range(int(input())):
        name = input()
        score = float(input())
        students.append([name,score])
        grades.append(score)
grades.sort()
students.sort()
second_lowest = 0
for i in grades:
    if(i != grades[0]):
        second_lowest = i
        break
for i in range(0,len(students)):
    if(students[i][1] == second_lowest):
        print(students[i][0])