Problem 1 - Multiples of 3 and 5 C언어

#include <stdio.h>

int main(){

int sum = 0;

for(int i = 0; i < 1000; i++){

if(i % 3 == 0 || i % 5 == 0){

sum += i;

}

}

  

printf("%d", sum);

}

OUTPUT 233168