#include<iostream>
using namespace std;
const int N=1e5+10;
int a[110][110],n,x,y,cnt=1;
int main(){
    cin>>n;
    a[1][1]=1;
    x=2;
    y=1;
    while(cnt<n*n){
        while(x>=1&&y<=n){
            a[x][y]=++cnt;
            x--;
            y++;
        }
        if(x==0&&y<=n){
            x++;
        }else{
            x+=2;
            y--;
        }
        while(y>=1&&x<=n)
        {
            a[x][y]=++cnt;
            x++;
            y--;
        }
        if(y==0&&x<=n){
            y++;
        }else{
            x--;
            y+=2;
        }
    }
    for(int i=1;i<=n;i++){
        for(int j=1;j<=n;j++)
        cout<<a[i][j]<<" ";
        cout<<endl;
    }
    return 0;
}

#include<iostream>
using namespace std;
const int N=1e5+10;
int a[110][110],n,x,y,cnt=1;
int main(){
    cin>>n;
    a[1][1]=1;
    x=2;
    y=1;
    while(cnt<n*n){
        while(x>=1&&y<=n){
            a[x][y]=++cnt;
            x--;
            y++;
        }
        if(x==0&&y<=n){
            x++;
        }else{
            x+=2;
            y--;
        }
        while(y>=1&&x<=n)
        {
            a[x][y]=++cnt;
            x++;
            y--;
        }
        if(y==0&&x<=n){
            y++;
        }else{
            x--;
            y+=2;
        }
    }
    for(int i=1;i<=n;i++){
        for(int j=1;j<=n;j++)
        cout<<a[i][j]<<" ";
        cout<<endl;
    }
    return 0;
}

#include<bits/stdc++.h>

using namespace std;

int a[101][101],n,i,j,ans=1;

int main(){

cin>>n;

i=1; j=1;

a[i][j]=1;

while(ans<=n*n){
	if((i==1&&j==n&&n%2==0)||(i==n&&j==1&&n%2!=0)){
		break;
	}
	if(j==1&&i%2!=0){
		a[i+1][j]=ans+1;
		ans++;
		i+=1;
		while(i!=1){
			a[i-1][j+1]=ans+1;
			ans++;
			i-=1;
			j+=1;
		}
	}
	else if(i-1<1&&j!=1){
		a[i][j+1]=ans+1;
		ans++;
		j+=1;
		while(j!=1){
			a[i+1][j-1]=ans+1;
			ans++;
			i+=1;
			j-=1;
		}
	}
}
while(ans<=n*n){
	if(i+1>n){
		a[i][j+1]=ans+1;
		ans++;
		j+=1;
		while(j!=n){
			a[i-1][j+1]=ans+1;
			ans++;
			i-=1;
			j+=1;
		}
	}
	else if(j+1>n){
		a[i+1][j]=ans+1;
		ans++;
		i+=1;
		while(i!=n){
			a[i+1][j-1]=ans+1;
			ans++;
			i+=1;
			j-=1;
		}
	}
	if(i==n&&j==n){
		break;
	}
}
for(i=1;i<=n;i++){
	for(j=1;j<=n;j++){
		cout<<a[i][j]<<" ";
	}
	cout<<endl;
}
return 0;

}

#include<iostream> using namespace std; const int N = 1e5 + 10;

int a[110][110],n,x,y,cnt = 1;

int main(){ cin>>n; a[1][1] = 1; x = 2; y = 1;

while(cnt < n * n)
{
	while(x >= 1 && y <= n){
		a[x][y] = ++cnt;
		x--;y++;
	}
	if(x == 0 && y <= n){
		x++;
	}
	else
	{
		x+=2;
		y--;
	}
	while(y >= 1 && x <= n){
		a[x][y] = ++cnt;
		x++;y--; 
	}
	
	if(y==0 && x <= n){
		y++;
	}
	else
	{
		x--;y+=2;
	}
}

for(int i =1;i<=n;i++)
{
	for(int j=1;j<=n;j++)
	cout<<a[i][j]<<" ";
	cout<<endl;
}

return 0;

}

#include<iostream>
using namespace std;
int a[101][101],n,x,y,cnt=1;
int main()
{
	cin>>n;
	a[1][1]=1;
	x=2;y=1;
	while(cnt<n*n)
	{
		//right-up
		while(x>0&&y<=n)
		{
			a[x][y]=++cnt;
			x--;y++;
		}
		if(x==0&&y<=n)x++;
		else
		{
			x+=2;
			y--;
		}
		while(y>0&&x<=n)
		{
			a[x][y]=++cnt;
			y--;x++;
		}
		if(y==0&&x<=n)y++;
		else
		{
			x--;
			y+=2;
		}
	}
	for(int i=1;i<=n;i++)
	{
		for(int j=1;j<=n;j++)cout<<a[i][j]<<' ';
		cout<<endl;
	}
	return 0;
}