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


int main() {
	int A, B, C;
	cin >> A >> B >> C;

	int ma = 1e5;
	vector<int> ans;
	for( long long x = 1; x < 3 * ma + 1; x++ ) {
		long long y = x * A - B;
		if( y <= 0 ) y = x * A;
		if( y == C ) ans.push_back( x );
	}
	if( ans.size() == 0 ) cout << -1 << endl;
	else {
		for( int e : ans ) cout << e << endl;
	}
}