import java.util.*;
import java.lang.*;
import java.io.*;

class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner in = new Scanner(System.in);
		Vector a = new Vector();
		while(in.hasNextDouble()){ 
			a.add(in.nextDouble()); 
		}
		int n=a.size()/2;
		int b=0;
		for(int i=0;i<n;i++){
			a.add(2*i+1,a.get(n+b+i));
		            b++;
		}
		a.setSize(2*n);
		Double[] s = new Double[a.size()];
		a.toArray(s);
		for(int i=0;i<s.length;i++){
			if(s[i]==s[i].intValue()){
				System.out.print(s[i].intValue()+" ");	
			}
			else{
				System.out.print(s[i]+" ");	
			}
		}
	}
}