int[,] matrix =
 
{
{1,2,3},
 
{4,5,6}
 
};
for (int i = 0; i < matrix.GetLength(0); i++)
 
{
for (int j = 0; j < matrix.GetLength(l);
 
{
Console.Write("{0} ", matrix[i, j]);
 
}
Console.WriteLine();