#include <iostream>
#include <vector>

using namespace std;

class Matrix
{
    private:
    std::vector<std::vector<int>> matrix;
    public:
    void setMatrix(int r, int c, int v = 1)
    {
        for (int i = 0; i < c; i++)
        {
            std::vector<int> vec;
            matrix.push_back(vec);
            for (int j = 0; j < r; j++)
            {
                matrix[i].push_back(v);
            }
        }
    }
    std::vector<std::vector<int>>& getMatrix()
    {
        return matrix;
    }
};

int main()
{
    Matrix matrix;
    matrix.setMatrix(3, 3);

    for(auto col : matrix.getMatrix())
    {
        for(auto row : matrix.getMatrix()[col])
        {
            std::cout << row << " ";
        }
        std::cout << std::endl;
    }

    return 0;
}