2017 Ho Chi Minh City Regional Contest

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2017-12-08 01:15 UTC

2017 Ho Chi Minh City Regional Contest

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2017-12-08 06:15 UTC
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Problem I
ICPC Awards

The ACM International Collegiate Programming Contest has been held in Vietnam for more than $10$ years. The contest is a great chance for the students to meet new friends, broaden their knowledge and of course, win prizes.

Every years, universities can send one or multiple teams to the contest and all universities hope to win prizes. The organizers want to define a rule to award the excellent contestants.

The contest director decided to follow the World Finals policy by having $4$ first prizes, $4$ second prizes and $4$ third prizes. $12$ winners out of more than a hundred teams is also a good proportion to recognize the best students.

Since universities can send multiple teams, we don’t want one university to swept all the awards. Thus, only the top team from a university can be awarded. It seems harsh for the second best team from one university but do not worry, they will still receive relevant certificates.

The table below is the result of top $10$ of Nha Trang Regional Contest 2016. The $4$-th (team WINDOWS) and $8$-th place (team UBUNTU) did not receive prizes because they were not the top team from University of Engineering and Technology - VNU. Team Metis and team BK.DeepMind are in the same situation.

Place

Institution

Team

Prize

$1$

Seoul National University

ACGTeam

First Prize

$2$

University of Engineering and Technology - VNU

LINUX

First Prize

$3$

Shanghai Jiao Tong University

Mjolnir

First Prize

$4$

University of Engineering and Technology - VNU

WINDOWS

$5$

National Taiwan University

PECaveros

First Prize

$6$

Hanoi University of Science and Technology

BK.Juniors

Second Prize

$7$

Ho Chi Minh City University of Science

HCMUS-Serendipity

Second Prize

$8$

University of Engineering and Technology - VNU

UBUNTU

$9$

Shanghai Jiao Tong University

Metis

$10$

Hanoi University of Science and Technology

BK.DeepMind

 

Given the final scoreboard of the contest, your task is to determine which $12$ teams should be awarded prizes.

Input

  • The input starts with the number of teams $N$ ($12 \leq N \leq 200$).

  • The $i$-th line of the next $N$ lines contains information about the team that ranks $i$: the university name and the team name separated by a single space. Both names consists of digits, lowercase and uppercase English alphabet letters only. Both names does not exceed $20$ letters in length.

  • It is guaranteed that there are at least $12$ different universities.

Output

The output should contain $12$ lines describing $12$ winners. In each line, you should print the university name and the team name separated by a single space. The winners should be listed in the same order as the input.

Sample Input 1 Sample Output 1
30
Seoul ACGTeam
VNU LINUX
SJTU Mjolnir
VNU WINDOWS
NTU PECaveros
HUST BKJuniors
HCMUS HCMUSSerendipity
VNU UBUNTU
SJTU Metis
HUST BKDeepMind
HUST BKTornado
HCMUS HCMUSLattis
NUS Tourism
VNU DOS
HCMUS HCMUSTheCows
VNU ANDROID
HCMUS HCMUSPacman
HCMUS HCMUSGeomecry
UIndonesia DioramaBintang
VNU SOLARIS
UIndonesia UIChan
FPT ACceptable
HUST BKIT
PTIT Miners
PSA PSA
DaNangUT BDTTNeverGiveUp
VNU UNIXBSD
CanTho CTUA2LTT
Soongsil Team10deung
Soongsil BezzerBeater
Seoul ACGTeam
VNU LINUX
SJTU Mjolnir
NTU PECaveros
HUST BKJuniors
HCMUS HCMUSSerendipity
NUS Tourism
UIndonesia DioramaBintang
FPT ACceptable
PTIT Miners
PSA PSA
DaNangUT BDTTNeverGiveUp