static void MainD(string[] args)
{
Thread.CurrentThread.CurrentCulture = System.Globalization.CultureInfo.InvariantCulture;
var io = new Io(args);
var T = io.Read <int>();
T.Times((X) =>
{
var L = io.ReadArray <int>();
int K = L[0], C = L[1], S = L[2];
if (C * S < K)
{
WriteLine($"Case #{X + 1}: IMPOSSIBLE");
return;
}
var pos = new List <long>();
int i = 0;
while (i < K)
{
int pi = i;
i = Math.Min(i + C - 1, K - 1);
long p = 0;
while (pi <= i)
{
p = p * K + (pi++);
}
pos.Add(p + 1);
++i;
}
WriteLine($"Case #{X+1}: " + string.Join(" ", pos));
});
}
static void MainA(string[] args)
{
Thread.CurrentThread.CurrentCulture = System.Globalization.CultureInfo.InvariantCulture;
var io = new Io(args);
var T = io.Read <int>();
T.Times((C) =>
{
var digits = New();
int i = 0, n = io.Read <int>();
while (i++ < 100)
{
KeepTrack(digits, i * n);
if (AllSeen(digits))
{
break;
}
}
WriteLine($"Case #{C + 1}: " + (n == 0 ? "INSOMNIA" : (i * n).ToString()));
});
}