function solution(number){
  var answer = 0
  var counter = [];
  var i = 1;
  while (i<number){
    counter.push(i)
    i++
  }
  for ( j = 0; j < counter.length; j++) {
    if (counter[j] % 3 === 0 || counter[j] % 5 === 0) {
      answer += counter[j]
    }
    }
    console.log(answer)
  }