import java.io.*;
import java.util.*;


public class Main {

	private static Scanner sc;
	private static Printer pr;

	private static void solve() {
		final int MOD = 1_000_000_007;

		int h = sc.nextInt();
		int w = sc.nextInt();
		int k = sc.nextInt() - 1;
		
		if (w == 1) {
			pr.println(1);
			return;
		}
		
		List<Integer> valid = new ArrayList<>();
		out:
		for (int i = 0; i < 0x1 << w - 1; i++) {
			for (int j = 0; j < 8; j++) {
				int mask = 0x3 << j;
				if ((i & mask) == mask) {
					continue out;
				}
			}
			valid.add(i);
		}

		long[][] dp = new long[w][h + 1];
		dp[0][0] = 1;
		for (int i = 0; i < h; i++) {
			for (int j = 0; j < w; j++) {
				for (int e : valid) {
					if (f(j, j - 1, e, w)) {
						dp[j - 1][i + 1] += dp[j][i];
						dp[j - 1][i + 1] %= MOD;
					}
					if (f(j, j + 1, e, w)) {
						dp[j + 1][i + 1] += dp[j][i];
						dp[j + 1][i + 1] %= MOD;
					}
					if (f(j, j, e, w)) {
						dp[j][i + 1] += dp[j][i];
						dp[j][i + 1] %= MOD;
					}
				}
			}
		}
		
		pr.println(dp[k][h]);
	}

	private static boolean f(int x, int y, int e, int w) {
		// x->yにeで行けるか
		if (y < 0 || y >= w || Math.abs(x - y) > 1) {
			return false;
		}
		
		if (y - x > 0) {
			return (e & 0x1 << x) != 0;
		} else if (y - x < 0){
			return (e & 0x1 << y) != 0;
		} else {
			// x==y
			if (x == 0) {
				return (e & 0x1 << x) == 0;
			} else if (x == w - 1) {
				return (e & 0x1 << x - 1) == 0;
			} else {
				return (e & 0x1 << x) == 0 && (e & 0x1 << x - 1) == 0;
			}
		}
	}

	// ---------------------------------------------------
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		pr = new Printer(System.out);
			
		solve();
			
		pr.close();
		sc.close();
	}

	static class Scanner {
		BufferedReader br;

		Scanner (InputStream in) {
			br = new BufferedReader(new InputStreamReader(in));
		}

		private boolean isPrintable(int ch) {
			return ch >= '!' && ch <= '~';
		}

		private boolean isCRLF(int ch) {
			return ch == '\n' || ch == '\r' || ch == -1;
		}

		private int nextPrintable() {
			try {
				int ch;
				while (!isPrintable(ch = br.read())) {
					if (ch == -1) {
						throw new NoSuchElementException();
					}
				}

				return ch;
			} catch (IOException e) {
				throw new NoSuchElementException();
			}
		}

		String next() {
			try {
				int ch = nextPrintable();
				StringBuilder sb = new StringBuilder();
				do {
					sb.appendCodePoint(ch);
				} while (isPrintable(ch = br.read()));

				return sb.toString();
			} catch (IOException e) {
				throw new NoSuchElementException();
			}
		}

		int nextInt() {
			try {
				// parseInt from Integer.parseInt()
				boolean negative = false;
				int res = 0;
				int limit = -Integer.MAX_VALUE;
				int radix = 10;

				int fc = nextPrintable();
				if (fc < '0') {
					if (fc == '-') {
						negative = true;
						limit = Integer.MIN_VALUE;
					} else if (fc != '+') {
						throw new NumberFormatException();
					}
					fc = br.read();
				}
				int multmin = limit / radix;

				int ch = fc;
				do {
					int digit = ch - '0';
					if (digit < 0 || digit >= radix) {
						throw new NumberFormatException();
					}
					if (res < multmin) {
						throw new NumberFormatException();
					}
					res *= radix;
					if (res < limit + digit) {
						throw new NumberFormatException();
					}
					res -= digit;

				} while (isPrintable(ch = br.read()));

				return negative ? res : -res;
			} catch (IOException e) {
				throw new NoSuchElementException();
			}
		}

		long nextLong() {
			try {
				// parseLong from Long.parseLong()
				boolean negative = false;
				long res = 0;
				long limit = -Long.MAX_VALUE;
				int radix = 10;

				int fc = nextPrintable();
				if (fc < '0') {
					if (fc == '-') {
						negative = true;
						limit = Long.MIN_VALUE;
					} else if (fc != '+') {
						throw new NumberFormatException();
					}
					fc = br.read();
				}
				long multmin = limit / radix;

				int ch = fc;
				do {
					int digit = ch - '0';
					if (digit < 0 || digit >= radix) {
						throw new NumberFormatException();
					}
					if (res < multmin) {
						throw new NumberFormatException();
					}
					res *= radix;
					if (res < limit + digit) {
						throw new NumberFormatException();
					}
					res -= digit;

				} while (isPrintable(ch = br.read()));

				return negative ? res : -res;
			} catch (IOException e) {
				throw new NoSuchElementException();
			}
		}

		float nextFloat() {
			return Float.parseFloat(next());
		}

		double nextDouble() {
			return Double.parseDouble(next());
		}

		String nextLine() {
			try {
				int ch;
				while (isCRLF(ch = br.read())) {
					if (ch == -1) {
						throw new NoSuchElementException();
					}
				}
				StringBuilder sb = new StringBuilder();
				do {
					sb.appendCodePoint(ch);
				} while (!isCRLF(ch = br.read()));

				return sb.toString();
			} catch (IOException e) {
				throw new NoSuchElementException();
			}
		}

		void close() {
			try {
				br.close();
			} catch (IOException e) {
//				throw new NoSuchElementException();
			}
		}
	}

	static class Printer extends PrintWriter {
		Printer(OutputStream out) {
			super(out);
		}
	}
}


Measured memory_bytes: 21460