#include <bits/stdc++.h>
using namespace std;
int main() {
std::cout<<sizeof(double)<<std::endl;
vector<double> vec{1,2,3,4,5,6};
auto it = vec.begin();
it++;
vector<double> vec2{it,vec.end()};
std::cout<<vec2.size()<<" "<<vec2[0]<<std::endl;
// your code goes here
return 0;
}
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