#include <iostream>
#include <algorithm>
 
using std::cout;
using std::cin;
using std::endl;
 
void AskUserForInterval() { cout << "Set interval:" << endl; }
 
std::pair<int, int> GetIntervalFromUser() {
  AskUserForInterval();
  int x = 0;
  int y = 0;
  cin >> x >> y;
  return std::minmax(x, y);
}
 
void ShowInterval(const std::pair<int, int> &minmax) {
  auto distance = minmax.second - minmax.first;
  for (int i = 0; i <= distance; ++i) {
    cout << minmax.first + i << endl;
  }
}
 
int main() {
  auto interval = GetIntervalFromUser();
  ShowInterval(interval);
}
 

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