#include <stdio.h>
int score_list[100]; //最大100個までの点数を格納する配列
int size = 0; //score_listに格納されている点数の個数
void record(int score){
	if(size<100){
		score_list[size]=score;
		size++;
	}
 // scoreをscore_listに格納し、sizeを更新
}
double average(void){
	if(size=0)return 0.0;
	int sum=0;
	for(int i=0;i=size;i++){
 
		sum+=score_list[i];
	}
	return (double)sum/size;
 // score_listに格納されている点数の平均を計算
}
int main(void){
 int i, score;
 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());
 return 0;
}

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