#include <iostream>
#include <vector>
using namespace std;

int main(){

    vector<int>::iterator it;
    vector<int> vec2(4);

    it  = vec2.begin();
    it = vec2.insert(it, 45);
    ++it;                      
    it = vec2.insert (it,23);

    for(it = vec2.begin(); it!= vec2.end(); ++it)
            cout << " "<<*it<<endl;
    return 0;
}