#include <iostream>
#include <vector>

void InsertInto(std::vector <int>& v1, int value, int position){

    auto it = v1.begin();
    it = v1.insert(it+position,value);
}

int main(){

       std::vector <int> v1 {5,2,4,5};
       InsertInto(v1,17,2);
       for (auto i: v1){
           std::cout << i << "\n";
       }

    return 0;
}