#include <iostream>
using namespace std;
int main()
{
    int n,columns,rows;
    cout << "Enter the number of users: ";
    cin >> n;
    int* array = new int[n];
    for (size_t i = 0; i < n; i++)
    {
        do
        {
            cout << "Enter the person number " << i + 1 << "'s last 4 digits: ";
            cin >> array[i];
        } while (array[i] <1000 || array[i] > 9999);

    }

    int matrix[100][100] = { 0 };
    cout << "Enter the number of columns: ";
    cin >> columns;
    cout << "Enter the number of rows: ";
    cin >> rows;


    int counter = 0;
    for (size_t i = 0; i < rows; i++)
    {
        for (size_t j = 0; j < columns; j++)
        {
            if (counter < n)
            {
                matrix[i][j] = array[counter];
                counter++;
            }
        }
    }

    for (size_t i = 0; i < rows; i++)
    {
        cout << endl;
        for (size_t j = 0; j < columns; j++)
        {
            if (matrix[i][j] == 0)
                cout << "000";
            cout << matrix[i][j] << " ";
        }
    }
    cout << endl;

    bool isIdentical = false;
    for (size_t i = 0; i < columns; i++)
    {
        for (size_t j = 0; j < rows; j++)
        {
            isIdentical = false;
            int countingRows = 1;
            while (countingRows <= rows - j)
            {
                if (matrix[j][i] != 0 && matrix[j][i] == matrix[j][countingRows])
                    {
                        isIdentical = true;
                        break;
                        cout << "aaa";
                    }

                countingRows++;
            }


        }
        cout << isIdentical << "    ";
    }
    delete[] array;
}