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#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")

#include <bits/stdc++.h>

using namespace std;

typedef uint32_t ul;
typedef int32_t l;
typedef uint64_t ull;
typedef int64_t ll;

const l INF = 1000000000 + 9;
const ll MOD = 1e9+7;
const l PRIME = 200003;
const ll L_INF = 1000000000000000000LL + 7;
const double EPS = 1e-5;

#define FOR(x, y, z) for (l z = x; z < y; z++)
#define FORE(x, y, z) for (l z = x; z <= y; z++)
#define FORD(x, y, z) for (l z = x; z > y; z--)
#define FORDE(x, y, z) for (l z = x; z >= y; z--)
#define REP(x, y) for (l y = 0; y < x; y++)
#define ALL(...) (__VA_ARGS__).begin(), (__VA_ARGS__).end()

#define PF push_front
#define POF pop_front
#define PB push_back
#define POB pop_back
#define MP make_pair
#define FS first
#define SC second

l n;
ll arr[1000005], dp[1000005];

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr); cout.tie(nullptr);

    cin >> n;
    REP(n, i)
        cin >> arr[i+1];
    dp[0] = 1;

    FORE(1, n, i)
    {
        ll suma = 0;
        FORDE(i, 1, j)
        {
            suma = (suma+arr[j])%MOD;
            if(suma % 2 == 0)
                dp[i] = (dp[i]+dp[j-1])%MOD;
        }
    }
    cout << dp[n] << "\n";
}