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

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