// tested by Hightail - https://github.com/dj3500/hightail
import std.stdio, std.string, std.conv, std.algorithm;
import std.range, std.array, std.math, std.typecons, std.container, core.bitop;

int n, p;
int[] a;

void main() {
    scan(n, p);
    a = readln.split.to!(int[]);

    int lim = n * 100;

    auto dp = new long[](lim + 1);
    dp[0] = 1L;

    foreach (i ; 0 .. n) {
        foreach_reverse (j ; a[i] .. lim + 1) {
            dp[j] += dp[j - a[i]];
        }
    }

    long ans;

    foreach (i ; 0 .. lim + 1) {
        if ((i & 1) == p) {
            ans += dp[i];
        }
    }

    writeln(ans);
}


void scan(T...)(ref T args) {
    string[] line = readln.split;
    foreach (ref arg; args) {
        arg = line.front.to!(typeof(arg));
        line.popFront();
    }
    assert(line.empty);
}


void fillAll(R, T)(ref R arr, T value) {
    static if (is(typeof(arr[] = value))) {
        arr[] = value;
    }
    else {
        foreach (ref e; arr) {
            fillAll(e, value);
        }
    }
}