for (i = 0; i < matrix.GetLength(0); ++i)
{
	min = i;
	for (j = i + 1; j < matrix.GetLength(0); ++j)
    {
    	if ( mas[min] > mas[j])
        	min = j;
    }
    if ( min != i)
    {
    	for (k = 0; k < matrix.GetLength(1); k++)
		{
			mas[k] = matrix[i, k]; matrix[i, k] = matrix[j, k]; matrix[j, k] = mas[k];
		} 
    }
}