sum the given integers

#include<stdio.h>
int main()
{
    int a,b;
    int sum=0;
    int i;
    printf("how many terms u want to be summed : ");
    scanf("%d",&a);
    for(i=1;i<=a;i++){
        printf("enter a number  :  ");
        scanf("%d",&b);
        sum+=b;
    }
    printf("sum is %d",sum);
}