#include<stdio.h>
int main ()
{
    int i,sum=0, count=0;
    float avg;
    for(i=1;i<=100;i++)
    {
        sum=sum+i;
        count++;
        avg=((float)sum/count);
    }
    printf ("sum=%d/n",sum);
    printf ("avg=%.2f/n",avg);
}