nested list in pthon
n=int(input())
res=[]
grade=[]
for i in range(n):
name=input()
mark=float(input())
res.append([name,mark])
grade.append(mark) #calculation 2nd lowest
#print(res)
#print(grade)
grade=sorted(set(grade)) #sorted unique
#print(grade)
m=grade[1]
#print(m)
name=[]
for val in res:
if m==val[1]:
name.append(val[0])
#print(name) #unsorted
name.sort()
#print(name) #sorted
for nm in name:
print(nm)