#include <bits/stdc++.h>
using namespace std;
#define REP(i,a,n) for(int i=(a); i<(int)(n); i++)
#define rep(i,n) REP(i,0,n)
#define FOR(it,c) for(__typeof((c).begin()) it=(c).begin(); it!=(c).end(); ++it)
#define ALLOF(c) (c).begin(), (c).end()
typedef long long ll;
typedef unsigned long long ull;


int main(){
  int A, B;
  cin >> A >> B;

  A++;
  int P = min(A, B);
  A -= P;
  B -= P;

  if(A == 0) cout << "YES" << endl;
  else cout << "NO" << endl;

  cout << A+B << endl;
  
  return 0;
}