Loop7(1 to n)Even Sum

#include<stdio.h>
int main()
{
    int i,n,sum=0;
    printf("Enter the numbers : ");
    scanf("%d",&n);
    for(i=2;i<=n;i=i+2)
    {
        sum=sum+i;
    }
    printf("%d\n",sum);
    return 0;
}