Nested List

listnamenscore=[]
listsecond=[]
listsecondscore=[]
n=int(raw_input())
for i in range(n):
    listnamenscore.append([raw_input(), float(raw_input())])
sorted(listnamenscore)
secondscore=listnamenscore[1][1]
for i in range(n):
    if listnamenscore[i][1]==secondscore:
        listsecond.append(listnamenscore[i][0])
for i in range(len(listsecond)):
    print listsecond[i]