#include<bits/stdc++.h>

#define ll long long
using namespace std;

int f, t, a;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    cin >> t >> f >> a;
    if (abs(f - t) <= a) {
        cout << "NO" << endl;
        return 0;
    }
    if(!(t>a&&t>f)||!(t<a&&t<f)){
        cout << "NO" << endl;
        return 0;
    }
    cout << "YES" << endl;
    cout << 2 * (min(f, t) + a) + 1 << endl;
    return 0;
}