#include <stdio.h>
#include <atcoder/all>
#include <bits/stdc++.h>
using namespace std;
using namespace atcoder;
using mint = modint998244353;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 1000000000

int main() {
    
	int A,B;
	cin>>A>>B;
	
	while(A!=0&&B!=0){
		A--,B--;
	}
	int ans= A+B;
	if(B>0){
		cout<<"YES"<<endl;
		ans--;
	}
	else{
		cout<<"NO"<<endl;
		ans++;
	}
	
	cout<<ans<<endl;
	
    return 0;
}