#include "stdafx.h"
#include <iostream>

using namespace std;

void left();
void bottom();
void right();
void top();
void read();
void printMatrix();

const int x = 4;
const int y = 4;

int fillNumber = 0;
int goInside = 0;
int matrix[y][x];

void main()
{
    cout << "Input: " << endl;
    while (fillNumber < x * y) { // 5 x 5 = 25
        read();
        goInside++;
    }

    cout << "Output:" << endl;
    printMatrix();
}

void left()
{
    for (int i = y - 2 -goInside; i >= 1 + goInside; i--)
    {
        cin >> matrix[i][0 + goInside];
        fillNumber++;
    }
}

void right() {
    for (int i = 1 + goInside; i < y - goInside; i++) {
        cin >> matrix[i][x - 1 - goInside];
        fillNumber++;
    }
}

void  top() {
    for (int i = 0 + goInside; i < x - goInside; i++) {
        cin >> matrix[0 + goInside][i];
        fillNumber++;
    }
}

void bottom() {
    for (int i = x - goInside - 2; i >= 0 + goInside; i--) {
        cin >> matrix[y - 1 - goInside][i];
        fillNumber++;
    }
}

void read()
{
    top();
    right();
    bottom();
    left();
}

void printMatrix()
{
    for (int i = 0; i < y; i++)
    {
        for (int j = 0; j < x; j++)
        {
            cout << matrix[i][j] << "\t";
        }

        cout << endl;
    }
}