/*-----------------------------------------------
	　while文（2）合計と平均
------------------------------------------------*/
import java.util.*;
public class While02Total {

	public static void main(String[] args) {
	
		Scanner sc=new Scanner(System.in);
		
		int number;
		int total=0;
		int count=0;
		double ave;
		
		System.out.print("数を入れてください（０で終了）\n");
		System.out.print("-->");
		number=sc.nextInt();
		
		while ( number != 0 ) {
			
			total+=number;
			count++;
		
			System.out.print("-->");
			number=sc.nextInt();
		}
		
		System.out.print("\n合計＝"+total);
		System.out.print("\n件数＝"+count);
		
		ave=total/count;
		System.out.print("\n平均＝"+ave);
	}

}