#include<iostream>
#include<cstdio>
using namespace std;
int main(){
	int a,i,b,sum=0;
	cin>>a;
	double avg;
	for(i=1;i<=a;i++){
		cin>>b;
		sum+=b;
	}
	avg=sum/a;
	printf("%d %.5f",sum,avg);
	return 0;
}

请问哪错了