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#include <array>
#include <bits/stdc++.h>
#include <vector>
#define all(vec) vec.begin(), vec.end()
#define PB push_back
#define PF push_front
#define EB emplace_back
#define EF emplace_front
#define EM emplace
#define FI first
#define SE second
#define pct __builtin_popcountll
#define ctz __builtin_ctzll
#define lson(o) (o << 1)
#define rson(o) (o << 1 | 1)
#define SZ(a) ((long long)a.size())
#define FOR(i, a, b) for (int i = (a); i <= (b); ++i)
#define ROF(i, a, b) for (int i = (a); i >= (b); --i)
#define debug(var) cerr << #var << ":" << var << "\n";
#define cend cerr << "\n-----------\n"
#define fsp(x) fixed << setprecision(x)
#define minn(vec) *min_element(vec.begin(), vec.end())
#define maxx(vec) *max_element(vec.begin(), vec.end())
#define yyy cout << "YES\n"
#define nnn cout << "NO\n"
using namespace std;
using ll = long long;
using ull = unsigned long long;
using DB = double;
using LD = long double;
using CD = complex<double>;
static constexpr ll MAXN = (ll)1e6 + 10, INF = (1ll << 61) - 1;
static constexpr ll mod = (ll)1e9 + 7;
static constexpr double eps = 1e-8;
const double pi = acos(-1.0);
ll N, M, Q, X, K, T, lT;
ll fa[MAXN];
ll find(ll x) {
if (x == fa[x])
return x;
return fa[x] = find(fa[x]);
}
void merge(ll u, ll v) {
u = find(u), v = find(v);
fa[u] = v;
}
void Solve() {
cin >> N;
vector<array<ll, 2>> A(N + 5);
FOR(i, 1, N) { cin >> A[i][0]; }
FOR(i, 1, N) { cin >> A[i][1]; }
sort(A.begin() + 1, A.begin() + 1 + N);
FOR(i, 1, N) { fa[i] = i; }
FOR(i, 1, N) { merge(A[i][1], i); }
ll invb = 0;
FOR(i, 1, N) {
if (fa[i] == i) {
invb++;
}
}
invb = (N - invb) % 2;
ll inva = 0;
auto out = [&]() {
ll c = inva + invb;
c %= 2;
if (c) {
cout << "A";
} else {
cout << "B";
}
};
out();
FOR(i, 1, N - 1) {
char ch;
ll l, r, d;
cin >> ch >> l >> r >> d;
ll len = r - l + 1;
if (d != 0)
inva += (len-1)*d;
out();
}
cout << "\n";
}
signed main() {
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
cin >> lT;
while (lT--)
Solve();
return 0;
}
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