#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define FOR(i,l,r) for(ll i=(l);i<(r);++i)
#define REP(i,n) FOR(i,0,n)
#define REPS(i,n) FOR(i,1,n+1)
#define RFOR(i,l,r) for(ll i=(l);i>=(r);--i)
#define RREP(i,n) RFOR(i,n-1,0)
#define RREPS(i,n) RFOR(i,n,1)
#define pb push_back
#define eb emplace_back
#define SZ(x) ((ll)(x).size())
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
template<class T = ll> using V = vector<T>;
template<class T = ll> using VV = V<V<T>>;
template<class T> inline bool chmin(T& a, T b) {if (a > b) {a = b; return true; }return false; }
template<class T> inline bool chmax(T& a, T b) {if (a < b) {a = b; return true; }return false; }
inline void Yes(bool b = true) {cout << (b ? "Yes" : "No") << '\n';}
inline void YES(bool b = true) {cout << (b ? "YES" : "NO") << '\n';}
inline void err(bool b = true) {if(b) {cout << -1 << '\n'; exit(0);}}
template<class T> inline void fin(bool b = true, T e = 0) {if(b) {cout << e << '\n'; exit(0);}}
template<class T> T Roundup_div(T x, T y) {return (x+(y-1))/y;}
const ll INF = 1e18;

//Modulo Calculation
const int MOD = 1e9 + 7;
// const int MOD = 998244353;

//ModInt
template <typename T>
T pow(T a, long long n, T e = 1) {
    T ret = e;
    while (n) {
        if (n & 1) ret *= a;
        a *= a;
        n >>= 1;
    }
    return ret;
}

template <int mod>
struct ModInt {
    int x;
    ModInt() : x(0) {}
    ModInt(ll x_) {
        if ((x = x_ % mod + mod) >= mod) x -= mod;
    }
    ModInt& operator+=(ModInt rhs) {
        if ((x += rhs.x) >= mod) x -= mod;
        return *this;
    }
    ModInt& operator-=(ModInt rhs) {
        if ((x -= rhs.x) < 0) x += mod;
        return *this;
    }
    ModInt& operator*=(ModInt rhs) {
        x = (unsigned long long)x * rhs.x % mod;
        return *this;
    }
    ModInt& operator/=(ModInt rhs) {
        x = (unsigned long long)x * rhs.inv().x % mod;
        return *this;
    }
  
    ModInt operator-() const { return -x < 0 ? mod - x : -x; }
    ModInt operator+(ModInt rhs) const { return ModInt(*this) += rhs; }
    ModInt operator-(ModInt rhs) const { return ModInt(*this) -= rhs; }
    ModInt operator*(ModInt rhs) const { return ModInt(*this) *= rhs; }
    ModInt operator/(ModInt rhs) const { return ModInt(*this) /= rhs; }
    bool operator==(ModInt rhs) const { return x == rhs.x; }
    bool operator!=(ModInt rhs) const { return x != rhs.x; }
    ModInt inv() const { return pow(*this, mod - 2); }
  
    friend ostream& operator<<(ostream& s, ModInt<mod> a) {
        s << a.x;
        return s;
    }
    friend istream& operator>>(istream& s, ModInt<mod>& a) {
        s >> a.x;
        return s;
    }
};
using mint = ModInt<MOD>;

//二項定理計算

const int MAX = 1000010;
mint fac[MAX],finv[MAX],inv[MAX];
//テーブル作成
void COMinit(){
    fac[0]=fac[1]=1;
    finv[0]=finv[1]=1;
    inv[1]=1;
    for(int i=2;i<MAX;i++){
        fac[i]=fac[i-1]*(mint)i;
        inv[i]=(mint)MOD-inv[MOD%i]*(mint)(MOD/i);
        finv[i]=finv[i-1]*inv[i];
    }
}

//nCkを求める
mint COM(int n,int k){
    if(n < k or n < 0 or k < 0)return 0;
    return fac[n]*finv[k]*finv[n-k];
}

//nPkを求める
mint PER(int n, int k){
    if(n < k or n < 0 or k < 0) return 0;
    return fac[n] / fac[n-k];
}


int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n, k; cin >> n >> k;
    V<> p, m, z;
    REP(i,n){
        int a; cin >> a;
        if(a > 0) p.pb(a);
        if(a < 0) m.pb(a);
        if(a == 0) z.pb(a);
    }
    int ar = SZ(m) - (SZ(m) % 2);
    int num = SZ(p) + ar;
    if(num >= k and (SZ(p) or !(k % 2))){
        sort(rall(p));
        sort(all(m));
        priority_queue<pair<ll,ll>> q;
        REP(i, SZ(p) / 2){
            q.push({p[2 * i] * p[2 * i + 1], 2 * i + 2});
        }
        REP(i, SZ(m) / 2){
            q.push({m[2 * i] * m[2 * i + 1], INF});
        }
        mint res = 1;
        if((k % 2) == 0){
            REP(i,k / 2){
                res *= (mint)q.top().first;
                q.pop();
            }
            cout << res << endl;
        }
        else{
            int ne = 0;
            REP(i,k / 2){
                res *= (mint)q.top().first;
                if(q.top().second != INF) ne = q.top().second;
                q.pop();
            }
            res *= p[ne];
            cout << res << endl;
        }
    }
    else{
        if(SZ(z)) fin(true, 0);
        sort(rall(m));
        sort(all(p));
        mint res = 1;
        REP(i,min(SZ(m),(ll)k)) res *= (mint)m[i];
        REP(i,max(k - SZ(m),0ll)) res *= (mint)p[i];
        cout << res << endl;
    }
}

Measured memory_bytes: 19664