Ukrainian Olympiad in Informatics, I Stage


Petya is bored with solving simple problems where you need to find the sum of two numbers, so his programming teacher gave a difficult problem that sounds like this: Given three integers $a$, $b$ and $c$. Determine is there such a number among them that equals to the sum of two other numbers. \InputFile First line contains three integers $a$, $b$ and $c$ ($0 \leq a, b, c \leq 100$). \OutputFile Print <<\t{Yes}>>, if such number exists, otherwise print <<\t{No}>> (without quotes).
Time limit 1 second
Memory limit 256 MiB
Input example #1
0 3 3
Output example #1
Input example #2
1 10 15
Output example #2
Input example #3
12 20 8
Output example #3
Author Roman Derkach
Source Ukrainian Olympiad in Informatics 2020/2021, I stage