lowest and highest number from scan 2871

#include<stdio.h>
int main()
{
    int i,e,f,x=0,1;
    printf("Enter lowest and highest number of the range:\n");
    scanf("%d %d",&e,&f);
    for(i=e; i<=f; i++)
    {
        printf("enter %d number :\n",i);
        scanf("%d",&l);
        x=x+1;
    }
    printf("sum =%d\t average=%d\n",x,x\f);
    return 0;

}