ListenvonListen

#!/bin/python
# -*- coding: utf-8 -*-

import os
os.system("clear")

valor = input()

lista = []
wert = []

for x in range(1,int(valor)+1):
    valores = input()
    a,b = valores.split()
    wert.append([x,a,b])

lista.append(wert)

print(lista)