PrintMatrix

static void PrintMatrix(int[,] matrix)
    {
        int max = matrix[0, 0];
        foreach (int cell in matrix) max = Math.Max(max, cell);
        int cellSize = (int)Math.Log10(Math.Max(max, 1)) + 1;

        for (int i = 0; i < matrix.GetLength(0); i++)
            for (int j = 0; j < matrix.GetLength(1); j++)
                Console.Write(Convert.ToString(matrix[i, j]).PadRight(cellSize, ' ') + (j != matrix.GetLength(1) - 1 ? " " : "\n"));
    }