Find the maximum element in a set of integers. List of integers ends with EOF.
Intergers are separated by whitespace characters (SPACE, TAB, NEWLINE).
There are at most 10000 integers in the list, their modulii being less
than 230.
Input#1
1 2 3 4 5 1
Output#1
5
Input#2
23
100 1000
12 34 45
Output#2
1000
Author:
Simple problem. Tests and description by Artem Voroztsov
15 March 2004