#include<bits/stdc++.h>
using namespace std;
      int main(){
      int a[100][100];
	  int n,x,y;
	  cin>>n>>x>>y;
	  for(int i=1;i<=n;i++){
	  	for(int j=1;j<=n;j++){
	  		if(i==x)cout<<"("<<i<<","<<j<<")";
		  }
	  }	
	  cout<<endl;
	  for(int i=1;i<=n;i++){
	  	for(int j=1;j<=n;j++){
	  		if(j==y)cout<<"("<<i<<","<<j<<")";
		  }
	  }	
	  cout<<endl;
    for(int i=1;i<=n;i++){
	  	for(int j=1;j<=n;j++){
	  		if(i-j==x-y)cout<<"("<<i<<","<<j<<")";
		  }
	  }	
      	cout<<endl;
    for(int i=n;i>=1;i--){
	  	for(int j=n;j>=1;j--){
	  		if(i+j==x+y)cout<<"("<<i<<","<<j<<")";
		  }
	  }	
      return 0;	
	  }