#include<stdio.h>
void main()
{
    float score,sum=0,average;
    int i,n=0;
    for(i=1;i<6;i++)
    {
        printf("please enter score:");
        scanf("%f",&score);
        if(score<60)
        {printf("Fail:%7.2f\n",score);
        continu;}
        sum=sun+score;
        n=n+1;
    }
    average=sum/n;
    printf("\nn=%d,average=%7.2f\n",n,average);
}