#include<bits/stdc++.h>
using namespace std;

int n, s, m; 
bool st[110];

int main()
{
	while(cin >> n >> s >> m, n ,s ,m)
	{
		memset(st, false, sizeof st);
		int t = 0, cnt = 0;
		while(1)
		{	
			for(int i = s; i <= n; i ++)
			{
				if(!st[i]) cnt ++;
				if(cnt % m == 0 && !st[i]) 
				{
					st[i] = true;
					t ++;
					if(t < n)	cout << i << ",";
					else cout << i << endl;
				}
			}
			if(t >= n) break;	
			s = 1;
		}
	}
	return 0;
}