#include <iostream>
using namespace std;

void function_new(int a, int b) {
	cout << a << " ";
	if (a > b) {
		function_new(a - 1, b);
	} else if (a < b) {
		function_new(a + 1, b);
	}
}

int main() {
	int number1, number2;
	cin >> number1 >> number2;
	function_new(number1, number2);
}