+ محدودیت زمان: ۱ ثانیه
+ محدودیت حافظه: ۲۵۶ مگابایت
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UEFA Champions League is the most prestigious annual sport competition in the world. In this competition, European clubs are divided into 8 groups of 4 teams.
In group stage, teams are ranked according to some specific rules. For example Team A will be ranked above Team B if:
+ Team A has more points than Team B.
+ If their points are equal, Team A has higher goal difference than Team B.
+ In case of tie in all previous cases, Team A has scored more goals than Team B.
+ In case of tie in all previous cases, Team A has scored more Away Scored Goals than Team B.
It is guaranteed that there won’t be a tie after these rules.
Your task is to write a program to determine the group leaders (top 2 teams of each group) based on their results.
# ورودی
The input is describing 12 games which are played between teams of a group.
Each line describes a game and its result. The length of each line doesn’t exceed 25.
The format of each line is: `HomeTeamName HomeTeamGoals vs. AwayTeamGoals AwayTeamName`
Teams’ names consist of English letters and space character.
The team with more scored goals wins the game and receives 3 points. In case of draw, both teams receive 1 point.
+ $GoalDifference = ScoredGoals - RecievedGoals$
+ Away Goals = Number of goals scored (being away team)
# خروجی
Print the names of first team and the second team in the appropriate order. They must be printed in separate lines.
# مثالها
## ورودی نمونه ۱
```
Man Utd 8 vs. 2 Arsenal
Lyon 1 vs. 2 Man Utd
FC Barca 0 vs. 0 Lyon
FC Barca 5 vs. 1 Arsenal
Man Utd 3 vs. 1 FC Barca
Arsenal 6 vs. 0 Lyon
Arsenal 0 vs. 0 Man Utd
Man Utd 4 vs. 2 Lyon
Arsenal 2 vs. 2 FC Barca
Lyon 0 vs. 3 FC Barca
Lyon 1 vs. 0 Arsenal
FC Barca 0 vs. 1 Man Utd
```
## خروجی نمونه ۱
```
Man Utd
FC Barca
```