#include <iostream>

#include <vector>

#include <algorithm>

using namespace std;

​

int main() {

  vector<int> numbers = {1, 2, 3, 5, 7, 9};

​

  if (is_sorted(numbers.begin(), numbers.end())) {

    cout << "Sorted";

  } else {

    cout << "Not sorted";

  }

  return 0;

}

​