Let the Balloon Rise
Time Limit: 2 Seconds
Memory Limit: 65536 KB
Contest time again! How excited it is to see balloons floating around. But
to tell you a secret, the judges' favorite time is guessing the most popular
problem. When the contest is over, they will count the balloons of each color
and find the result.
This year, they decide to leave this lovely job to you.
Input contains multiple test cases. Each test case starts with a number N (0
< N < 1000) -- the total number of balloons distributed. The next N lines
contain one color each. The color of a balloon is a string of up to 15 lower-case
A test case with N = 0 terminates the input and this test case is not to be
For each case, print the color of balloon for the most popular problem on a
single line. It is guaranteed that there is a unique solution for each test
Author: WU, Jiazhi
Source: Zhejiang Provincial Programming Contest 2004