#include <cstring>
#include <cassert>
#include <fstream>
#include <algorithm>

using namespace std;

int N, M, K;
long long D[92][12][92];

int main()
{
	ifstream fin("arbori.in");
	ofstream fout("arbori.out");
	
	fin >> N >> M >> K;
	
	for (int i = 1; i <= N - 1; ++i)
		D[1][0][i] = 1;
	for (int i = 2; i <= N; ++i)
	{
		D[i][(M + i - 1) % M][1] = 1;
		for (int j = 0; j < M; ++j)
			for (int k = 2; k <= i; ++k)
			{
				D[i][j][k] = D[i][j][k - 1];
				
				long long COMB = 1;
				for (int act = 1; act * k < i; ++act)
				{
					COMB *= D[k][(M + K - 1) % M][k - 1] + act - 1;
					COMB /= act;
					D[i][j][k] += D[i - act * k][(M + j - act) % M][k - 1] * COMB;
				}
			}
	}
	
	fout << D[N][K][N - 1] << '\n';
	
	fin.close();
	fout.close();
}