#include <iostream>
using namespace std;
int main()
{
   
    std::cout << "Enter two numbers: " << std::endl;
    int a,b;
    std::cin >> a >> b;
    
    for (int i = a+1; i < b; i++)
    {
        cout << i << endl;
    }
    
    for (int i = a-1; i > b; i--)
    {
        cout << i << endl;
    }

    return 0;
}