#include <iostream>
#include <vector>

int main(int argc, char* argv[])
{
    std::vector<int> v = { 0, 1, 2, 3 };
    
    auto it = v.begin();
    auto it2 = v.begin();
    auto it3 = v.begin();
    
    std::cout << *(it++) << " "; std::cout << *it << std::endl;
    std::cout << *(++it2) << " "; std::cout << *it2 << std::endl;
    std::cout << *(it3+1) << " "; std::cout << *it3 << std::endl;
    
    return 0;
}