#include <iostream>
#include <math.h>
using namespace std;

int main()
{
unsigned long long x, y;
cin >> x >> y;
if(x > y)
{
 int aux = y;
 y = x;
 x = aux;
}
unsigned long long k1 = ceil( (-1 + sqrt(1 + 8 * x))/2);
unsigned long long k2 = ceil( (-1 + sqrt(1 + 8 * y))/2);
unsigned long long poz2 = y  - k2*(k2-1)/2;
while (x < y)
{
    cout << x << ' ';
     while( k2 - k1 >= poz2 )
{
    x = x + k1;
     cout << x <<' ';
     k1++;

}
x += k1 + 1;
k1++;
}
cout << y;
return 0;
}