#include <bits/stdc++.h>
using namespace std;

void solve() {
    int n, a, b;
    cin >> n >> a >> b;
    int u = a, d = a, l = b, r = b;
    vector<array<int, 4>>ans;
    for (int i = 1;i < n;i++) {
        if (l > 1 and u > 1) {
            l--, u--;
            ans.push_back({ u,l,d - u,r - l });
        }
        if (l > 1 and d < n) {
            l--, d++;
            ans.push_back({ d,l,u - d,r - l });
        }
        if (r < n and u>1) {
            u--;r++;
            ans.push_back({ u,r,d - u,l - r });
        }
        if (r < n and d < n) {
            r++;d++;
            ans.push_back({ d,r,u - d,l - r });
        }
    }
    cout << "Yes\n";
    cout << ans.size() << "\n";
    for (auto [x, y, z, d] : ans) {
        cout << x << " " << y << " " << z << " " << d << "\n";
    }
}

signed main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    int tt = 1;

#ifdef LOCAL
    freopen("data.in", "r", stdin);
    freopen("data.out", "w", stdout);
#endif
    // cin >> tt;
    while (tt--)
        solve();
    return 0;
}