#include <stdio.h>
int score_list[100]; 
int size = 0; 

void record(int score){
    score_list[size] = score;
    size++;
}

double average(){
	int sum = 0;
	for(int i=0 ; i<size ; i++){
		sum += score_list[i];
	}
	
	return (double)sum / size;
}

double cond_average(int a, int b){
	int sum = 0;
	int count = 0;
	
	for(int i=0 ; i<size ; i++){
		if(score_list[i] >= a && score_list[i] < b){
			
		sum += score_list[i];
		count++;
		}
	}
	if(count == 0){
		return 0.0;
	}
	
	return(double)sum / count;
}
int main(void){
int i, score;
int a,b;
for(i=0 ; i<5 ; i++){
scanf("%d", &score);
printf("%d人目：%d点\n", i+1, score);
record(score);
}
printf("平均点：%lf点\n", average());

scanf("%d",&a);
scanf("%d",&b);

printf("%d点以上%d点未満の人の平均点は%lf点です。\n",a,b,cond_average(a,b));
return 0;
}