#define _CRT_SECURE_NO_WARNINGS
#include<iostream>
using namespace std;
int main()
{
int sum = 0;
int small, big;
cout << "Enter two numbers please:\n";
cin >> small;
cin >> big;
for (; small <=big; small++)
{
sum += small;
}
cout << "The sum between the smaller number to the bigger number is : " << sum << endl;
return 0;
}