#include <iostream>
using namespace std;

void square_print(int **a, int x_temp1, int y_temp1, int x_temp2, int y_temp2)
{
    if(x_temp1 == x_temp2)
    {
        for(int i = y_temp1; i <= y_temp2; i++)
            cout << a[x_temp1][i] << ' ';
        return ;
    }
    if(y_temp1 ==
 
 y_temp2)
    {
        for(int i = x_temp1; i <= x_temp2; i++)
            cout << a[i][y_temp1] << ' ';
        return ;
    }

    //?????
    for(int i = y_temp1; i < y_temp2; i++)
        cout << a[x_temp1][i] << ' ';
    for(int i = x_temp1; i < x_temp2; i++)
        cout <<
 
 a[i][y_temp2] << ' ';
    for(int i = y_temp2; i > y_temp1; i--)
        cout << a[x_temp2][i] << ' ';
    for(int i = x_temp2; i > x_temp1; i--)
        cout << a[i][y_temp1] << ' ';
} 

int main()
{
    cout << "please input rows and columns: ";
    int rows,
 
 columns; cin >> rows >> columns;
    int **nums = new int *[rows];
    for(int i = 0; i < rows; i++)
        nums[i] = new int [columns];

    cout << "please input the data: ";
    for(int i = 0; i < rows; i++)
    {
        for(int ii = 0; ii < columns; ii++)
        {
            cin >> nums[i][ii];
        }
    }

    cout << "the row data is: " << endl;
    for(int i = 0; i < rows; i++)
    {
        for(int ii = 0; ii < columns; ii++)
        {
            cout << nums[i][ii] << ' ';
        }
        cout << endl;
    }

    cout << "the output data is: " << endl;
    int x_temp1 = 0, y_temp1 = 0, x_temp2 = rows - 1, y_temp2 = columns - 1;
    while(x_temp1 <= x_temp2 && y_temp1 <= y_temp2)
    {
        square_print(nums, x_temp1, y_temp1, x_temp2, y_temp2);
        x_temp1++; y_temp1++; x_temp2--; y_temp2--;
    }
    
    delete [] nums;
    system("pause");
    return 0;
}