package com;

import java.util.ArrayList;
import java.util.List;

public class TestDue {

    public static void main(String args[]) {
        int size = 10;

        int row = 0, col = 0;
        int boundary = size - 1;
        int sizeLeft = size - 1;
        int flag = 1;

        char move = 'r';
        int[][] matrix = new int[size][size];
        for (int i = 1; i < size * size + 1; i++) {
            matrix[row][col] = i;
            switch (move) {
            case 'r':
                col += 1;
                break;
            case 'l':
                col -= 1;
                break;
            case 'u':
                row -= 1;
                break;
            case 'd':
                row += 1;
                break;
            }
            if (i == boundary) {
                boundary = boundary + sizeLeft;
                if (flag != 2) {
                    flag = 2;
                } else {
                    flag = 1;
                    sizeLeft -= 1;
                }
                switch (move) {
                case 'r':
                    move = 'd';
                    break;
                case 'd':
                    move = 'l';
                    break;
                case 'l':
                    move = 'u';
                    break;
                case 'u':
                    move = 'r';
                    break;
                }
            }
        }
        for (row = 0; row < size; row++) {
            for (col = 0; col < size; col++) {
                int n = matrix[row][col];
                if (n < 10)
                    System.out.print(n + "   ");
                else
                    if(n<100)
                        System.out.print(n + "  ");
                    else
                        System.out.print(n + " ");
            }
            System.out.println();
        }
    }
}