A=[input().split()for i in' '*int(input())]
A.sort(key=lambda x:-float(x[1]))
print(*[k for k,v in A])

A=[input().split()[::-1]for i in' '*int(input())]
A.sort(reverse=True)
print(*[v for k,v in A])

A=[input().split()for i in' '*int(input())]
A.sort(key=lambda x:-float(x[1]))
print(*[k for k,v in A])

the input looks like:
10    <--- number of items to follow
word .15
pepsi 4.6
anotherword 1.6
bus 3
...

for i in' '*int(input()):k=int(input());pos=len(bin(k)[2:])-1;print(k^(1<<pos))

gets.to_i.times{n=gets.to_i;p n^(1<<n.to_s(2).size-1)}

g=input()
w=int(input())
print(int(w/1.2)if g=="M"else int(w*1.2)if g=="F"else"INVALID")

d,n=map(int,input().split())
f=1
S=[0]*d
for i in range(n):
 v=[f*k for k in map(int,input().split())]
 S = [S[k]+v[k] for k in range(d)]
 f*=-1
print(*S)

saved some more room
d,n=map(int,input().split())
S=[0]*d
for i in range(n):
 v=list(input().split());S=[S[k]+(-1)**i*int(v[k])for k in range(d)]
print(*S)

d,n=map(int,input().split())
S=[0]*d
for i in range(n):v=list(input().split());S=[S[k]+(-1)**i*int(v[k])for k in range(d)]
print(*S)

d,n=map(int,input().split())
S=[0]*d
for i in range(n):v=input().split();S=[S[k]+(-1)**i*int(v[k])for k in range(d)]
print(*S)

class A(custom_object):
    __slots__ = []

char x = 'X';
int v = 0;
System.out.print(true  ? x : 0);
System.out.print(false ? v : x);

System.out.print(true  ? 'X' : 0);
System.out.print(false ? 0 : 'X');