#include <vector>
#include <algorithm>
#include <iostream>
using namespace std;
int main([[maybe_unused]] int argc,
[[maybe_unused]] const char * argv[])
{
vector<int> a{1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20};
rotate(a.begin(),a.begin()+5,a.end());
for(int i: a) cout << i << " ";
}
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