#include <iostream>
#include <algorithm>
#define endl "\n"
using namespace std;
typedef pair<int,int> PII;
PII ul,ur,dl,dr;
void print(PII x){
	cout << x.first << " " << x.second << " ";
}
int main(){
	ios::sync_with_stdio(0);
	cin.tie(0),cout.tie(0);
	int n,x,y;
	cin >> n >> x >> y;
	ul=ur=dl=dr={x,y};
	cout << "Yes" << endl;
	cout << n-1 << endl;
	for(int i=1;i<n;i++){
		if(ul.first-1>=1 && ul.second-1>=1){
			ul.first-=1;
			ur.first-=1;
			dl.second-=1;
			ul.second-=1;
			print(ul);
			cout << i+1 << " " << i+1 << endl;
		}
		else if(ur.first-1>=1 && ur.second+1<=n){
			ur.first-=1;
			ul.first-=1;
			ur.second+=1;
			dr.second+=1;
			print(ur);
			cout << i+1 << " " << -(i+1) << endl;
		}
		else if(dl.first+1<=n && dl.second-1>=1){
			dl.first+=1;
			dr.first+=1;
			dl.second-=1;
			ul.second-=1;
			print(dl);
			cout << -(i+1) << " " << i+1 << endl;
		}
		else{
			dl.first+=1;
			dr.first+=1;
			dr.second+=1;
			ur.second+=1;
			print(dr);
			cout << -(i+1) << " " << -(i+1) << endl;
		}
	}
	return 0;
}