import std.stdio, std.conv, std.string, std.array, std.algorithm, std.regex;

void main(){
	auto ip = readln.split.to!(int[]), a = ip[0], b = ip[1], c = ip[2];
	if(a == b + c || b == a + c || c == a + b){
		writeln("Yes");
	} else {
		writeln("No");
	}
}