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

#define PII pair<int, int>
#define VI vector<int>
#define VPII vector<PII>
#define LL long long
#define LD long double
#define f first
#define s second
#define MP make_pair
#define PB push_back
#define endl '\n'
#define ALL(c) (c).begin(), (c).end()
#define SIZ(c) (int)(c).size()
#define REP(i, n) for (int i = 0; i < (int)(n); i++)
#define FOR(i, b, e) for (int i = (b); i <= (int)(e); i++)
#define FORD(i, b, e) for (int i = (b); i >= (int)(e); i--)
#define ll long long
#define st f
#define nd s
#define pb PB
#define eb emplace_back
#define mp make_pair
const int inf = 1e9 + 7;
const LL INF = 1e18L + 7;

#define sim template<class n
sim, class s> ostream & operator << (ostream &p, pair<n, s> x)
{return p << "<" << x.f << ", " << x.s << ">";}
sim> auto operator << (ostream &p, n y) ->
typename enable_if<!is_same<n, string>::value, decltype(y.begin(), p)>::type
{int o = 0; p << "{"; for (auto c : y) {if (o++) p << ", "; p << c;} return p << "}";}
void dor() {cerr << endl;}
sim, class...s> void dor(n p, s...y) {cerr << p << " "; dor(y...);}
sim, class s> void mini(n &p, s y) {if (p > y) p = y;}
sim, class s> void maxi(n &p, s y) {if (p < y) p = y;}

#ifdef DEB
#define debug(...) dor(__FUNCTION__, ":", __LINE__, ": ", __VA_ARGS__)
#else
#define debug(...)
#endif

#define I(x) #x " = ", (x), " "
#define A(a, i) #a "[" #i " = ", i, "] = ", a[i], " "

const int N = 1007;

int n, k, mod;

int dwu[N][N];

ll dp[N][11][3];
ll sum[N][11][3];

int32_t main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(NULL);

	cin >> n >> k >> mod;

	if(k>10)
	{
		cout << 0 << endl;
		return 0;
	}

	for(int i = 0; i < N; ++i)
	{
		dwu[i][0] = 1;
	}

	for(int i = 1; i < N; ++i)
	{
		for(int j = 1; j <= i; ++j)
		{
			dwu[i][j] = (dwu[i-1][j]+dwu[i-1][j-1])%mod;
		}
	}

	dp[1][0][2] = sum[1][0][2] = 1;
	dp[2][1][2] = sum[2][1][2] = 1;

	for(int i = 1; i <= 10; ++i)
	{
		sum[1][i][2] = dp[1][i][2] + sum[1][i-1][2];
		sum[2][i][2] = dp[2][i][2] + sum[2][i-1][2];
	}

	for(int i = 3; i <= n; ++i)
	{
		for(int j = 1; j <= 10; ++j)
		{
			//0

			for(int g = 2; g <= i-1; ++g)
			{
				dp[i][j][0] += dwu[i-1][g-1]*(dp[g][j][1]+dp[g][j][2])%mod*(dp[i-g+1][j][1]+dp[i-g+1][j][2])%mod;
				dp[i][j][0] += dwu[i-1][g-1]*(dp[g][j][1]+dp[g][j][2])%mod*(sum[i-g+1][j-1][1]+sum[i-g+1][j-1][2])%mod;
				dp[i][j][0] += dwu[i-1][g-1]*(sum[g][j-1][1]+sum[g][j-1][2])%mod*(dp[i-g+1][j][1]+dp[i-g+1][j][2])%mod;
			}

			dp[i][j][0] %= mod;

			//1

			for(int g = 2; g <= i-1; ++g)
			{
				dp[i][j][1] += dwu[i-2][g-2]*dp[g][j][2]%mod*(dp[i-g+1][j][1]+dp[i-g+1][j][2])%mod;
				dp[i][j][1] += dwu[i-2][g-2]*dp[g][j][2]%mod*(sum[i-g+1][j-1][1]+sum[i-g+1][j-1][2])%mod;
				dp[i][j][1] += dwu[i-2][g-2]*sum[g][j-1][2]%mod*(dp[i-g+1][j][1]+dp[i-g+1][j][2])%mod;

			}

			dp[i][j][1] %= mod;

			//2

			for(int g = 2; g <= i-1; ++g)
			{
				dp[i][j][2] += dwu[i-3][g-2]*dp[g][j-1][2]%mod*dp[i-g+1][j-1][2]%mod;
				dp[i][j][2] += dwu[i-3][g-2]*dp[g][j][2]%mod*sum[i-g+1][j-1][2]%mod;
				dp[i][j][2] += dwu[i-3][g-2]*sum[g][j-1][2]%mod*dp[i-g+1][j][2]%mod;
			}

			dp[i][j][2] %= mod;

			sum[i][j][0] = (dp[i][j][0]+sum[i][j-1][0])%mod;
			sum[i][j][1] = (dp[i][j][1]+sum[i][j-1][1])%mod;
			sum[i][j][2] = (dp[i][j][2]+sum[i][j-1][2])%mod;
		}
	}

	ll ans = dp[n][k][0] + 2*(dp[n][k][1]+dp[n][k][2]);

	ans %= mod;
	ans += mod;
	ans %= mod;

	cout << ans << endl;
}