"use strict";
var input=require("fs").readFileSync("/dev/stdin","utf8");
var cin=input.split(/ |\n/),cid=0;
function next(){return +cin[cid++];}
function nextstr(){return cin[cid++];}
function nextbig(){return BigInt(cin[cid++]);}
function nexts(n,a){return a?cin.slice(cid,cid+=n):cin.slice(cid,cid+=n).map(a=>+a);}
function nextm(h,w,a){var r=[],i=0;if(a)for(;i<h;i++)r.push(cin.slice(cid,cid+=w));else for(;i<h;i++)r.push(cin.slice(cid,cid+=w).map(a=>+a));return r;}
function xArray(v){var a=arguments,l=a.length,r="Array(a["+--l+"]).fill().map(x=>{return "+v+";})";while(--l)r="Array(a["+l+"]).fill().map(x=>"+r+")";return eval(r);}

var myOut = main();
if(myOut !== undefined)console.log(myOut);

function main(){
  var n = next();
  var p = next();
  var a = [0,0];
  for(var i = 0; i < n; i++)a[next() & 1]++;
  var ans = 0;
  if(p && a[1] === 0)return 0;
  for(var i = p; i <= a[1]; i+=2)ans += ncr(a[1],i);
  return ans * Math.pow(2,a[0]);
}
function ncr(n,r){
  var res = 1;
  if(r > n-r)r = n-r;
  for(var i = 0 ;i < r; i++)res *= n-i, res /= i+1;
  return res;
}