Array Intialization :)

Here I have functions that initializes first 25 elements by squaring the index and the other 25 by multiplying 3 times the index. My assignment has instructed me to print out 10 elements per array. How possibly can I print out 10 numbers per line?????

  
//Function to initlizae an array. First 25 components is equal to the square of the index
void twentyfivecompinitial(double alpha[],int size)
{
	int index=0;
	for (index=0;index<size/2;index++)
	{
		alpha[index]=(index*index);
		cout<<" ";
		cout<<alpha[index];
	
	}

	while (index<size)
	{
		alpha[index]=(3*index);
		cout<< " ";
		cout<<alpha[index];
		index++;
	}
}

int _tmain(int argc, _TCHAR* argv[])
{

	//Declare an array aplha of 50 compnents of type double
	double aplha[50];

	//Function call to intialize first twenty five from the square of index variable
	twentyfivecompinitial(aplha,50);
	_getch();