static void Main()
{
var ss = new StreamScanner(new StreamReader(Console.OpenStandardInput()));
var sw = new StreamWriter(Console.OpenStandardOutput())
{
AutoFlush = false
};
new Program().Solve(ss, sw);
sw.Flush();
}
void Solve(StreamScanner ss, StreamWriter sw)
{
//---------------------------------
var N = ss.Next(Int);
var A = ss.Next(Long);
var B = ss.Next(Long);
if (N < A + B - 1 || A * B < N)
{
sw.WriteLine(-1);
return;
}
var seq = MakeSeq(N, A, B);
var comp = Compress(seq);
sw.WriteLine(string.Join(" ", comp));
//---------------------------------
}
