#include <stdio.h>
 
int score_list[100];
int size = 0;
 
void record(int score) {
     score_list[size]=score;
     size++;  
}
 
double average(void) {
       int sum=0;
       for(int 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：%2lf点\n", average());
 
    return 0;
}

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