#include <stdio.h>
int score_list[100]; 
int size = 0; 
void record(int score){
	score_list[size]=score;
	size++;
  
}
double average(){
	int i,sum=0;
	for(i=0;i<size;i++)
	{
		sum+=score_list[i];
	}
  return (double)sum/size;
}
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;
}