#include <iostream>
using namespace std;
int a,b,i,k,l,j,s;
int main()
{
cin >> a >> b;
for(i=b;i<=a;i++)
{
k=0;
l=0;
s++;
for(j=s;j<=i;j++)
{
k+=j;
l++;
if(k==a and l==b)
{
for(int q=j-l+1;q<=j;q++)
cout << q << " ";
return 0;
}
if(l==b)
break;
}
}
cout << "Nu exista";
return 0;
}