#include <bits/stdc++.h>

using namespace std;
 
#define DEBUG(x) cerr<<#x<<": "<<x<<endl;
#define DEBUG_VEC(v) cerr<<#v<<":";for(int i=0;i<v.size();i++) cerr<<" "<<v[i]; cerr<<endl;
#define DEBUG_MAT(v) cerr<<#v<<endl;for(int i=0;i<v.size();i++){for(int j=0;j<v[i].size();j++) {cerr<<v[i][j]<<" ";}cerr<<endl;}
typedef long long ll;
// #define int ll
 
#define vi vector<int>
#define vl vector<ll>
#define vii vector< vector<int> >
#define vll vector< vector<ll> >
#define vs vector<string>
#define pii pair<int,int>
#define pis pair<int,string>
#define psi pair<string,int>
#define pll pair<ll,ll>
template<class S, class T> pair<S, T> operator+(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first + t.first, s.second + t.second); }
template<class S, class T> pair<S, T> operator-(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first - t.first, s.second - t.second); }
template<class S, class T> ostream& operator<<(ostream& os, pair<S, T> p) { os << "(" << p.first << ", " << p.second << ")"; return os; }
#define X first
#define Y second
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define rep1(i,n) for(int i=1;i<=(int)(n);i++)
#define rrep(i,n) for(int i=(int)(n)-1;i>=0;i--)
#define rrep1(i,n) for(int i=(int)(n);i>0;i--)
#define REP(i,a,b) for(int i=a;i<b;i++)
#define in(x, a, b) (a <= x && x < b)
#define all(c) c.begin(),c.end()
template<class T> bool chmax(T &a, const T &b) { if (a<b) { a = b; return 1; } return 0; }
template<class T> bool chmin(T &a, const T &b) { if (a>b) { a = b; return 1; } return 0; }
#define UNIQUE(v) v.erase(std::unique(v.begin(), v.end()), v.end());
const ll inf = 1000000001;
const ll INF = (ll)1e18 + 1;
const long double pi = 3.1415926535897932384626433832795028841971L;
#define Sp(p) cout<<setprecision(25)<< fixed<<p<<endl;
// int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1};
// int dx2[8] = { 1,1,0,-1,-1,-1,0,1 }, dy2[8] = { 0,1,1,1,0,-1,-1,-1 };
vi dx = {1, 0, -1, 0}, dy = {0, 1, 0, -1};
// vi dx2 = { 1,1,0,-1,-1,-1,0,1 }, dy2 = { 0,1,1,1,0,-1,-1,-1 };
#define fio() cin.tie(0); ios::sync_with_stdio(false);
const ll MOD = 1000000007;
// const ll MOD = 998244353;
// #define mp make_pair
//#define endl '\n'

const int MAXN = 555555;

vl fact(MAXN);
vl rfact(MAXN);

ll mod_pow(ll x, ll p, ll M = MOD) {
  if (p < 0) {
    x = mod_pow(x, M - 2, M);
    p = -p;
  }
  ll a = 1;
  while (p) {
    if (p % 2)
      a = a*x%M;
    x = x*x%M;
    p /= 2;
  }
  return a;
}

ll mod_inverse(ll a, ll M = MOD) {
  return mod_pow(a, M - 2, M);
}

void set_fact(ll n, ll M = MOD) {
  fact[0] = fact[1] = rfact[0] = rfact[1] = 1;
  for (ll i = 2; i <= n; i++) {
    fact[i] = i * fact[i - 1] % M;
    // rfact[i] = mod_inverse(fact[i], M);
  }
}

//http://drken1215.hatenablog.com/entry/2018/06/08/210000
//n���傫��fact���v�Z�ł��Ȃ��Ƃ��̂ق��̌v�Z���@�ɂ��ď����Ă���
ll nCr(ll n, ll r, ll M = MOD) {
  if (r > n) return 0;
  assert(fact[2] == 2);
  ll ret = fact[n];
  if (rfact[r] == 0) {
    rfact[r] = mod_inverse(fact[r], M);
  }
  ret = (ret*rfact[r]) % M;
  if (rfact[n - r] == 0) {
    rfact[n - r] = mod_inverse(fact[n - r], M);
  }
  ret = (ret*rfact[n - r]) % M;
  return ret;
}

ll nHr(ll n, ll r) {
  return nCr(n+r-1, r);
}


signed main() {
    fio();
    int n, k;
    cin >> n >> k;

    vl pos, neg, ze;
    rep (i, n) {
        ll x;
        cin >> x;
        if (x > 0) pos.push_back(x);
        else if (x < 0) neg.push_back(x);
        else ze.push_back(x);
    }

    int fu = -2;
    int neg_can = (int)neg.size() / 2 * 2;
    if (neg_can + pos.size() >= k) {
        if (k % 2 == 0 or pos.size() > 0) {
            fu = 1;
        }
    }

    if (fu == -2) {
        if (ze.size() > 0) fu = 0;
        else fu = -1;
    }

    DEBUG(fu);
    if (fu == 0) {
        cout << 0 << endl;
        return 0;
    }

    if (fu == 1) {
        sort(all(pos));
        reverse(all(pos));
        sort(all(neg));
        while (pos.size() < k) pos.push_back(-1);
        ll ans = 1;
        int pi;
        for (pi = 0; pi < k; pi++) (ans *= pos[pi]) %= MOD;
        int ni = 0;
        pi--;
        while (true) {
            if (ni + 1 >= neg.size()) break;
            if (pi - 1 < 0) break;
            if (pos[pi] == -1 or (pos[pi] * pos[pi - 1] <= neg[ni] * neg[ni + 1])) {
                ans = ans * mod_inverse(pos[pi]) % MOD * mod_inverse(pos[pi - 1]) % MOD;
                ans = ans * neg[ni] % MOD * neg[ni + 1] % MOD;
                pi -= 2;
                ni += 2;
            }
            else break;
        }
        cout << (ans % MOD + MOD) % MOD << endl;
    }
    else {
        sort(all(pos));
        sort(all(neg));
        reverse(all(neg));
        ll ans = 1;
        int pi = 0, ni = 0;
        pos.push_back(INF);
        neg.push_back(-INF);
        while (k > 0) {
            if (abs(pos[pi]) < abs(neg[ni])) ans *= pos[pi++];
            else ans *= neg[ni++];
            ans %= MOD;
            k--;
        }
        cout << (ans % MOD + MOD) % MOD << endl;
    }
}


Measured memory_bytes: 16536