for _ in range(int(input())):
    a = [list(map(int, input().split())) for i in range(2)]
    cnt = sum([sum(a[i]) for i in range(2)])
    if cnt == 0:
        print(0)
    elif cnt == 4:
        print(2)
    else:
        print(1)

#include <bits/stdc++.h>

using namespace std;

int main() {
  ios::sync_with_stdio(false); cin.tie(0);
  int t;
  cin >> t;
  while (t--) {
    int n;
    cin >> n;
    cout << 2 << '\n';
    for (int i = 1; i <= n; ++i) if (i % 2 != 0)
      for (int j = i; j <= n; j *= 2)
        cout << j << ' ';
    cout << '\n';
  }
} 

#include <bits/stdc++.h>

#define forn(i, n) for (int i = 0; i < int(n); i++)

using namespace std;

int main() {
	int t;
	scanf("%d", &t);
	while (t--){
		int n, m;
		scanf("%d%d", &n, &m);
		vector<int> a(m);
		forn(i, m){
			scanf("%d", &a[i]);
			--a[i];
		}
		vector<int> cnt(n);
		forn(i, m) ++cnt[a[i]];
		auto check = [&](int t){
			long long fr = 0, need = 0;
			forn(i, n){
				if (t >= cnt[i])
					fr += (t - cnt[i]) / 2;
				else
					need += cnt[i] - t;
			}
			return need <= fr;
		};
		int l = 0, r = 2 * m;
		int res = -1;
		while (l <= r){
			int m = (l + r) / 2;
			if (check(m)){
				res = m;
				r = m - 1;
			}
			else{
				l = m + 1;
			}
		}
		printf("%d\n", res);
	}
	return 0;
}

#include <bits/stdc++.h>

using namespace std;

int main() {
  ios::sync_with_stdio(false); cin.tie(0);
  int t;
  cin >> t;
  while (t--) {
    int n;
    cin >> n;
    vector<int> a(n), b(n);
    for (int& x : b) cin >> x;
    vector<pair<int, int>> ev(n);
    for (int i = 0; i < n; ++i)
      ev[i] = {(i + 1) / (b[i] + 1) + 1, i};
    sort(ev.begin(), ev.end());
    set<pair<int, int>> s;
    int j = 0;
    for (int i = 1; i <= n; ++i) {
      while (j < n && ev[j].first == i) {
        int id = ev[j++].second;
        s.insert({b[id] ? (id + 1) / b[id] : n, id});
      }
      a[s.begin()->second] = i;
      s.erase(s.begin());
    }
    for (int& x : a) cout << x << ' ';
    cout << '\n';
  }
} 

#include <bits/stdc++.h>

using namespace std;

vector<int> zf(const string &s) {
    int n = s.size();
    vector<int> z(n);
    int l = 0, r = 0;
    for (int i = 1; i < n; ++i) {
        if (i <= r) {
            z[i] = min(r - i + 1, z[i - l]);
        }
        while (i + z[i] < n && s[z[i]] == s[i + z[i]]) {
            ++z[i];
        }
        if (i + z[i] - 1 > r) {
            l = i;
            r = i + z[i] - 1;
        }
    }
    return z;
}

int main() {
#ifdef _DEBUG
    freopen("input.txt", "r", stdin);
//  freopen("output.txt", "w", stdout);
#endif
    
    int T;
    cin >> T;
    while (T--) {
        int n, m;
        string s, t;
        cin >> n >> m >> s >> t;
        
        int ans = 1e9;
        
        bool bad = false;
        vector<int> lpos(m), rpos(m);
        for (int i = 0; i < m; ++i) {
            if (i > 0) {
                lpos[i] = lpos[i - 1] + 1;
            } else {
                lpos[i] = 0;
            }
            while (lpos[i] < n && s[lpos[i]] != t[i]) {
                ++lpos[i];
            }
            if (lpos[i] >= n) {
                bad = true;
                break;
            }
        }
        for (int i = m - 1; i >= 0; --i) {
            if (i + 1 < m) {
                rpos[i] = rpos[i + 1] - 1;
            } else {
                rpos[i] = n - 1;
            }
            while (rpos[i] >= 0 && s[rpos[i]] != t[i]) {
                --rpos[i];
            }
            if (rpos[i] < 0) {
                bad = true;
                break;
            }
        }
        if (bad) {
            cout << -1 << endl;
            continue;
        }
        
        for (int pos = 0; pos <= n; ++pos) {
            string tmp = s.substr(0, pos);
            reverse(tmp.begin(), tmp.end());
            tmp += "#" + t;
            reverse(tmp.begin() + pos + 1, tmp.end());
            vector<int> z = zf(tmp);
            for (int suf = 0; suf <= m; ++suf) {
                if (pos - suf < 0) {
                    continue;
                }
                if (suf < m && rpos[suf] < pos) {
                    continue;
                }
                if (suf - 1 >= 0 && lpos[suf - 1] > pos) {
                    continue;
                }
                int rg = 0;
                if (suf != 0) {
                    int sum = (pos - z[pos + 1 + m - suf]) + (pos - suf);
                    rg = (sum != 0) + sum;
                } else {
                    rg = pos;
                }
                ans = min(ans, (n - pos) + rg);
            }
        }
        cout << ans << endl;
    }
    
    return 0;
}

#include<bits/stdc++.h>

using namespace std;

const int N = 200043;
const int M = 200001;

typedef array<long long, 3> vec;
typedef array<vec, 3> mat;

vec operator+(const vec& a, const vec& b)
{
    vec c;
    for(int i = 0; i < 3; i++) c[i] = a[i] + b[i];
    return c;
}

vec operator-(const vec& a, const vec& b)
{
    vec c;
    for(int i = 0; i < 3; i++) c[i] = a[i] - b[i];
    return c;
}

vec operator*(const mat& a, const vec& b)
{
    vec c;
    for(int i = 0; i < 3; i++) c[i] = 0;
    for(int i = 0; i < 3; i++)
        for(int j = 0; j < 3; j++)
            c[i] += a[i][j] * b[j];
    return c;
}

mat operator*(const mat& a, const mat& b)
{
    mat c;
    for(int i = 0; i < 3; i++)
        for(int j = 0; j < 3; j++)
            c[i][j] = 0;
    for(int i = 0; i < 3; i++)
        for(int j = 0; j < 3; j++)
            for(int k = 0; k < 3; k++)
                c[i][k] += a[i][j] * b[j][k];
    return c;
}

mat F = {vec({1, 0, 0}), vec({1, 1, 0}), vec({1, 2, 1})};
mat B = {vec({1, 0, 0}), vec({-1, 1, 0}), vec({1, -2, 1})};
mat E = {vec({1, 0, 0}), vec({0, 1, 0}), vec({0, 0, 1})};

vec S = {1, 0, 0};
vec Z = {0, 0, 0};

vec t[4 * N];
mat f[4 * N];
bool active[4 * N];
bool has[N];
int d, q;

vec getVal(int v)
{
    if(!active[v]) return Z;
    return f[v] * t[v];
}

void recalc(int v)
{
    t[v] = getVal(v * 2 + 1) + getVal(v * 2 + 2);    
}

void build(int v, int l, int r)
{
    if(l == r - 1)
    {
        f[v] = E;
        t[v] = S;
        active[v] = false;                 
    }
    else
    {
        int m = (l + r) / 2;
        build(v * 2 + 1, l, m);
        build(v * 2 + 2, m, r);
        f[v] = E;
        recalc(v);
        active[v] = true;               
    }
}

void push(int v)
{
    if(f[v] == E) return;
    t[v] = f[v] * t[v];
    f[v * 2 + 1] = f[v] * f[v * 2 + 1];
    f[v * 2 + 2] = f[v] * f[v * 2 + 2];
    f[v] = E;
}

void updSegment(int v, int l, int r, int L, int R, bool adv)
{
    if(L >= R) return;
    if(l == L && r == R)
    {
        if(adv) f[v] = F * f[v];
        else f[v] = B * f[v];
        return;
    }
    push(v);
    int m = (l + r) / 2;
    updSegment(v * 2 + 1, l, m, L, min(m, R), adv);
    updSegment(v * 2 + 2, m, r, max(m, L), R, adv);
    recalc(v);
}

void setState(int v, int l, int r, int pos, bool val)
{
    if(l == r - 1)
    {   
        active[v] = val;
        return;
    }
    push(v);
    int m = (l + r) / 2;
    if(pos < m)
        setState(v * 2 + 1, l, m, pos, val);
    else
        setState(v * 2 + 2, m, r, pos, val);
    recalc(v);
}

void addPoint(int x)
{
    int lf = max(0, x - d);
    int rg = x;
    if(lf < rg)
        updSegment(0, 0, M, lf, rg, true);
    setState(0, 0, M, x, true);        
}

void delPoint(int x)
{
    int lf = max(0, x - d);
    int rg = x;
    if(lf < rg)
        updSegment(0, 0, M, lf, rg, false);
    setState(0, 0, M, x, false);        
}

void query(int x)
{
    if(has[x])
    {
        has[x] = false;
        delPoint(x);
    }
    else
    {
        has[x] = true;
        addPoint(x);
    }
    vec res = getVal(0);
    printf("%lld\n", (res[2] - res[1]) / 2);
}

int main()
{
    scanf("%d %d", &q, &d);
    build(0, 0, M);
    for(int i = 0; i < q; i++)
    {
        int x;
        scanf("%d", &x);
        query(x);
    }
}