import java.util.Scanner;
class Array {
public static void main(String a[]){
Scanner input = new Scanner(System.in);
System.out.println("Enter the size of an Array");
int num = input.nextInt();
System.out.println("Enter the Element "+num+" of an Array");
double[] numbers = new double[num];
for (int i = 0; i < numbers.length; i++)
{
System.out.println("Please enter number");
numbers[i] = input.nextDouble();
}
for (int i = 0; i < numbers.length; i++)
{
if ( (i%3) !=0){
System.out.print("");
System.out.print(numbers[i]+"\t");
} else {
System.out.println("");
System.out.print(numbers[i]+"\t");
}
}
}