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“In mathematics, theorems are named after the second person to discover them, for the first is always Euler.”
Leonhard Euler was a brilliant mathematician who made significant advancements in many areas of math and science, and hence has a lot of things named after him. In this problem, you will figure out whether Euler was the first one to discover a theorem.
A test case begins with an integer N (1 \leq N \leq 1000). N lines follow, each containing a person’s name S and a year Y, which means that person S discovered the theorem in year Y. No two people will discover a theorem in the same year.
Output the name of the first person to discover the theorem.
Sample Input 1
Sample Output 1
Sample Input 2
Sample Output 2
Sample Input 3
Sample Output 3
Read only if you are stuck or have already solved the problem.