#include <vector>
#include <algorithm> // but placing this include here breaks DON'T CHANGE ANYTHING ABOVE
#include <iostream> // added for demonstration purposes
using namespace std;
 
vector<int> rotate(const vector<int>& v)
{
   // PUT CODE BELOW THIS LINE. DON'T CHANGE ANYTHING ABOVE.
   std::vector<int> result(v); // copy input array
   std::rotate(result.begin(), result.begin()+1, result.end());
   return result;
   // PUT CODE ABOVE THIS LINE. DON'T CHANGE ANYTHING BELOW.
}
 
int main()
{
    for (const auto & val: rotate({1,2,3}))
    {
        std::cout << val << ' ';
    }
}
 

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