#include <iostream>
#include <algorithm>
using namespace std;
 
int main() {
	int n,s=0;
	cin>>n;
	if(n%2!=0){
	    for(int i=0;i<n;i++){
	        for(int j=0;j<n;j++){
	            s++;
	            cout<<s<<' ';
	        }
	        cout<<endl;
	    }
	} else{
	    int a[n][n];
	    for(int i=0;i<n;i++){
	        for(int j=0;j<n;j++){
	            s++;
	            a[i][j]=s;
	        }
	    }
	    for(int i=0;i<n;i++){
	        if(i%2!=0){
	           for(int j=0;j<n-1;j+=2){
    	            swap(a[i][j],a[i][j+1]);
    	        } 
	        }
	    }
	    for(int i=0;i<n;i++){
	        for(int j=0;j<n;j++){
	            cout<<a[i][j]<<' ';
	        }
	        cout<<endl;
	    }
	}
	return 0;
}

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12