小中大

package ncu.edu.ccf;

import java.util.Scanner;

public class XiaoZhongDa {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int[] arr = new int[n];
		for(int i=0; iarr[n-1]) {
			big = arr[0];
			small= arr[n-1];
		}else {
			big = arr[n-1];
			small= arr[0];
		}
		System.out.print(big+" ");
		
		if(n%2 == 0) {
			int temp = arr[n/2] + arr[(n/2)-1];//****
			if(temp%2 == 0)
				System.out.print(temp/2+" ");
			else
				System.out.print(temp/2+".5 ");
		}else {
			 System.out.print(arr[n/2]+" ");
		}
		 System.out.print(small);
	}

}