void Sort(int matrix[n][n])
{
   int i,j,y,x;
   for (j=1;j<n;j++)
   {
   for (i=1;i<n;i++)
   {
   	x= matrix [i][j];
   	y= i-1;
   	while (matrix[y][j]>x&&y>=0)
   	{
   		matrix [y+1][j]=matrix[y][j];
   		y--;
   		
	   }
	   matrix[y+1][j] = x;
   }
   }