problem turn out per ... ase tle scanf panel

Problem Description
In this problem, your task is to calculate SUM(n) = 1 + 2 + 3 + ... + n. Input The input will consist of a series of integers n, one integer per line. Output For each case, output SUM(n) in one line, followed by a blank line. Code #include<stdio.h>
int main()
{
int i,n,sum;
while(scanf("%d",&n)!=EOF)
{
sum=0;
for(i=1;i<=n;i++)
sum+=i;
printf("%d\n\n",sum);
}
return 0;
}

Sum Problem