import java.util.Map.Entry;
import java.io.*;
import java.util.*;

public class Main {
	
	public static void main(String[] args) throws IOException {
		FastScanner sc = new FastScanner(System.in);
		
		int N = sc.nextInt();
		int P = sc.nextInt();
		int even = 0, odd = 0;
		for(int i = 0; i < N; i++){
			int A = sc.nextInt();
			if(A % 2 == 0) even++;
			else odd++;
		}
		
		int MAX = 100;
		long[][] C = new long[MAX][MAX];
		C[0][0] = 1;
		for (int i = 1; i < C.length; ++i) {
			C[i][0] = 1;
			for (int j = 1; j < C[i].length; ++j) {
				C[i][j] = C[i - 1][j] + C[i - 1][j - 1];
			}
		}
		
		long ans = 1;
		if(P == 0){
			ans = pow2(even);
			long selectOdd = 0;
			for(int i = 0; i <= odd; i += 2)
				selectOdd += C[odd][i];
			ans *= selectOdd;
		}else{
			ans = pow2(even);
			long selectOdd = 0;
			for(int i = 1; i <= odd; i += 2)
				selectOdd += C[odd][i];
			ans *= selectOdd;
		}
		System.out.println(ans);
	}
	
	
	
	public static long pow2(int n){
		if(n == 0) return 1;
		
		if(n % 2 == 0){
			long a = pow2(n/2);
			return a * a;
		}else{
			return 2 * pow2(n-1);
		}
	}
}

class FastScanner {
    private InputStream in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;
    public FastScanner(InputStream in) {
		this.in = in;
	}
    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        }else{
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }
    private int readByte() {
    	if (hasNextByte()) return buffer[ptr++];
    	else return -1;
    }
    private static boolean isPrintableChar(int c){
    	return 33 <= c && c <= 126;
    }
    public boolean hasNext() {
    	while(hasNextByte() && !isPrintableChar(buffer[ptr]))
    		ptr++; return hasNextByte();
    }
    public String next() {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }
    public long nextLong() {
        if (!hasNext()) throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while(true){
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }
    public int nextInt() {
        long nl = nextLong();
        if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
        return (int) nl;
    }
    public double nextDouble() {
    	return Double.parseDouble(next());
    }
}

Measured memory_bytes: 22996