/// Msaa el 5ra
#pragma GCC optimize("O3")
#pragma GCC optimize ("unroll-loops")
#pragma GCC target("avx,avx2,fma")

#include "bits/stdc++.h"

using namespace std;

#define pb push_back
#define F first
#define S second
#define f(i, a, b)  for(int i = a; i < b; i++)
#define all(a)  a.begin(),a.end()
#define rall(a) a.rbegin(),a.rend()
#define popCnt(x) (__builtin_popcountll(x))
#define int ll

using ll = long long;
using ii = pair<int, int>;
using ull = unsigned long long;

const int N = 1e6 + 5, LG = 18, MOD = (119 << 23) + 1;
const long double PI = acos(-1);
const long double EPS = 1e-7;

int grid[2005][2005];
vector<ii> vp;
int sum = 0;
int k = 1;

void color(int x1, int y1, int x2, int y2, int c) {
    f(i, x1, x2 + 1)f(j, y1, y2 + 1) grid[i][j] = c;
}

bool check(int x1, int y1, int x2, int y2) {
    if (x2 > k || y2 > k)return false;
    f(i, x1, x2 + 1)f(j, y1, y2 + 1)if (grid[i][j])return false;
    return true;
}

bool bt(int mask) {
    if (mask == 15)return true;
    int x = 0, y = 0;
    for (int i = 1; i <= k && !x; i++) {
        for (int j = 1; j <= k && !x; j++) {
            if (!grid[i][j]) {
                x = i;
                y = j;
            }
        }
    }
    f(i, 0, 4) if (mask >> i & 1 ^ 1) {
            if (check(x, y, x + vp[i].F - 1, y + vp[i].S - 1)) {
                color(x, y, x + vp[i].F - 1, y + vp[i].S - 1, i + 1);
                if (bt(mask | (1 << i)))
                    return true;
                color(x, y, x + vp[i].F - 1, y + vp[i].S - 1, 0);
            }
        }
    return false;
}

void doWork() {
    vp.resize(4);
    f(i, 0, 4) {
        cin >> vp[i].F >> vp[i].S;
        sum += vp[i].F * vp[i].S;
    }
    while (k * k < sum)k += 1;
    if (k * k != sum) {
        cout << "0\n";
        return;

    }

    f(m, 0, 1 << 4) {
        f(i, 0, 4)if (m >> i & 1)swap(vp[i].F, vp[i].S);
        if (bt(0)) {
            cout << "1\n";
            return;
        }
        f(i, 0, 4)if (m >> i & 1)swap(vp[i].F, vp[i].S);
    }
    cout << "0\n";
}

int32_t main() {
#ifdef ONLINE_JUDGE
    ios_base::sync_with_stdio(0);
    cin.tie(0);
#endif // ONLINE_JUDGE
    int t = 1;
//    cin >> t;
    while (t--) {
        doWork();
    }
}