import std, core.bitop;
bool chmin(T)(ref T SE, T MI) { if (SE > MI) { SE = MI; return true; } else { return false; } }
bool chmax(T)(ref T SE, T MI) { if (SE < MI) { SE = MI; return true; } else { return false; } }
int lowerBound(T)(T[] SE, T MI) { int lo = -1, hi = cast(int)(SE.length); while (hi - lo > 1) { int mid = lo + hi >> 1; (SE[mid] < MI ? lo : hi) = mid; } return hi; }
int upperBound(T)(T[] SE, T MI) { int lo = -1, hi = cast(int)(SE.length); while (hi - lo > 1) { int mid = lo + hi >> 1; (SE[mid] > MI ? hi : lo) = mid; } return hi; }
enum MO = 998244353;
void main() {
	int N, M, K;
	readf("%s %s %s\n", N, M, K);
	if (M == 1) {
		writeln(1 << N);
	}
	auto dp = new long[][](2, 1 << N);
	int cur;
	dp[cur][(1 << N) - 1] = 1;
	foreach (i; 0 .. M) {
		int nxt = !cur;
		foreach (j; 0 .. 1 << N) {
			dp[nxt][j] = 0;
		}
		foreach (j; 0 .. 1 << N) {
			foreach (k; 0 .. 1 << N) {
				if (popcnt(j & k) >= K) {
					(dp[nxt][k] += dp[cur][j]) %= MO;
				}
			}
		}
		cur = nxt;
	}
	long ans;
	foreach (i; 0 .. 1 << N) {
		ans += dp[cur][i];
	}
	ans %= MO;
	ans.writeln;
}