Several warm-up matches have been played at the tennis tournament. You have data on the victories and losses of some players. Your task is to save the names of the winners to a list.
The input format:
On the first line, you'll receive the integer n specifying a number of lines.
The next n lines will look like either Name win or Name loss.
The output format:
Print out the list of all players that have won a match, repeat the names if necessary.
You can use "Name win".split() to get a list with the strings ["Name", "win"].
