#include<bits/stdc++.h> 
using namespace std;
int main()
{
	int n,x,y;
	cin>>n>>x>>y;
	for(int j=1;j<=n;j++) cout<<"("<<x<<","<<j<<")";
	cout<<endl;
	for(int i=1;i<=n;i++) cout<<"("<<i<<","<<y<<")";
	cout<<endl;
	int i=x,j=y;
	while(1)
	{
		if(i==1||j==1) break;
		i--,j--;
	}
	while(1)
	{
		cout<<"("<<i<<","<<j<<")";
		if(i==n||j==n) break;
		i++,j++;
	}
	cout<<endl;
	i=x,j=y;
	while(1)
	{
		if(j==1||i==n) break;
		i++,j--;
	}
	while(1)
	{
		cout<<"("<<i<<","<<j<<")";
		if(i==1||j==n) break;
		i--,j++;
	}
 	return 0; 
}

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