import std.stdio, std.array, std.string, std.conv, std.algorithm;
import std.typecons, std.range, std.random, std.math, std.container;
import std.numeric, std.bigint, core.bitop;

immutable long MOD = 998244353;

void main() {
    auto s = readln.split.map!(to!int);
    auto N = s[0];
    auto W = s[1].to!long;
    auto A = readln.split.map!(to!long).array;
    long ans = 0;

    foreach (mask; 1..1<<N) {
        long sm = 0;
        foreach (i; 0..N) if ((mask >> i) & 1) sm += A[i];
        if (sm == W) ans += 1;
        foreach (i; 0..N) if ((mask >> i) & 1) {
            auto x = sm - A[i]/2;
            if (x == W) ans += 1;
        }
    }

    ans.writeln;
}