#include <iostream>
#include <vector>
#include <iomanip>
using namespace std;
int main() {
int count_divisible(){
vector<int> vec {1,3,5,15,16,17,18,19,20,21,25,26,27,30,50,55,56,58,100,200,300,400,500,600,700};
int count {0};
for (auto i: vec) {
if (i % 3 == 0 || i % 5 == 0) {
++count;
}
}
return count;
}