#ifdef MY_LOCAL
#include "D://competitive_programming/debug/debug.h"
#define debug(x) cerr << "[" << #x<< "]:"<<x<<"\n"
#else
#define debug(x) 
#endif
#define REP(i, n) for(int i = 0; i < n; i ++)
#define REPL(i,m, n) for(int i = m; i < n; i ++)
#define SORT(arr) sort(arr.begin(), arr.end())
#define LSOne(S) ((S)&-(S))
#define M_PI 3.1415926535897932384
#define INF 1e18
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
typedef long long ll;
#define int ll
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int, int> ii;
typedef vector<ii> vii;
typedef vector<vii> vvii;
typedef double ld;
typedef tree<int,null_type,less<int>, rb_tree_tag, tree_order_statistics_node_update> ost;

signed main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	int a,b,c;cin>>a>>b>>c;
	bool found = false;
	REPL(i,1, c+b+1) {
		int j = i*a;
		if (j <= b && j == c) {
			cout<<i<<"\n";
			found = true;
		} else if (j > b && j - b == c) {
			cout<<i<<"\n";
			found = true;
		}
	}
	if (!found) {
		cout<<-1;
	}

}