1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
//Maciej Bielik

#include<bits/stdc++.h>

#define rep(i,poczatek,koniec)  for(__typeof(koniec) i = poczatek; i<=koniec; ++i)
#define repr(i,poczatek,koniec) for(__typeof(koniec) i = poczatek; i>=koniec; --i)
#define pb push_back
#define pob pop_back
#define eb emplace_back
#define pf push_front
#define pof pop_front
#define st first
#define nd second
#define bend(X) X.begin(),X.end()
#define sz(X) (int(X.size()))
#define print cout<<
#ifdef LOCAL
#define nl endl
#define dbg if(1)cout<<
#else
#define nl '\n'
#define dbg if(0)cout<<
#endif

using namespace std;

using ll 	= long long;
using ull 	= unsigned long long;
using ld 	= long double;
using pii 	= pair<int,int>;
using pll 	= pair<ll,ll>;
using pli	= pair<ll,int>;
using vb 	= vector<bool>;
using vc 	= vector<char>;
using vi 	= vector<int>;
using vl 	= vector<ll>;
using vpi 	= vector<pii>;
using vpl	= vector<pll>;
using vvi	= vector<vi>;
using vvl 	= vector<vl>;
using vvb	= vector<vb>;

template<typename T1, typename T2> istream& operator>>(istream& is, pair<T1,T2>& x){
	is >> x.st >> x.nd;
	return is;
}
template<typename T1, typename T2> ostream& operator<<(ostream& os, pair<T1,T2>& x){
	os << '(' << x.st << ',' << x.nd << ')';
	return os;
}
template<typename T> istream& operator>>(istream& is, vector<T>& x){
	for(T& i : x)is >> i;
	return is;
}
template<typename T> ostream& operator<<(ostream& os, vector<T> x){
	for(T& i : x)os << i << ' ';
	return os;
}
template<typename T1, typename T2> pair<T1,T2> operator+(const pair<T1,T2>& A, const pair<T1,T2>& B){
	return {A.st + B.st, A.nd + B.nd}; 
}
template<typename T1, typename T2> pair<T1,T2> operator-(const pair<T1,T2>& A, const pair<T1,T2>& B){
	return {A.st - B.st, A.nd - B.nd}; 
}
template<typename T1, typename T2> pair<T1,T2> operator-(const pair<T1,T2>& A){
	return {-A.st, -A.nd};
}
template<typename T1, typename T2> void mine(T1& A, const T2& B){if(B < A) A = B;}
template<typename T1, typename T2> void maxe(T1& A, const T2& B){if(B > A) A = B;}

const int INF 	= (int)2e9;
const int war17 = (int)1<<17;
const int war18 = (int)1<<18;
const int war19 = (int)1<<19;
const int war20 = (int)1<<20;
const int war21 = (int)1<<21;
const ll INFll 	= (ll)9e18;
const int MOD 	= (int)1e9+7;

int R(int pocz, int kon){
	return (rand()%(kon-pocz+1) + pocz);
}

ll RR(ll pocz, ll kon){
	return ((ll((rand()) << 30) + rand())/(kon-pocz+1) + pocz);
}

void fastDataTransfer(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
}

const int N = 100005;

int n, m, a, b, c, d, q, k;
vi G[N];
string A,B;
int wiepocz;

void read(){
    rep(i,1,n){
        G[i].clear();
    }
	cin >> n >> A >> B;
    A = '#' + A;
    B = '#' + B;
    rep(i,2,n){
        cin >> a >> b;
        G[a].pb(b);
        G[b].pb(a);
    }
    rep(i,1,n){
        if(G[i].size() == 1)
            wiepocz = i;
    }
}

bool dobre[N];

string pomm,pomm2;

void DFS(int v, int p){
    for(auto i : G[v]){
        if(i == p)
            continue;
        DFS(i,v);
        if(A[v] != A[i])
            pomm += A[v];
    }
    if(p != 0 && G[v].size() == 1){
        pomm+=A[v];
    }
}

void DFS2(int v, int p){
    for(auto i : G[v]){
        if(i == p)
            continue;
        DFS2(i,v);
        if(B[v] != B[i])
            pomm2 += B[v];
    }
    if(p != 0 && G[v].size() == 1){
        pomm2+=B[v];
    }
}

void case1(){
    DFS(wiepocz,0);
    DFS2(wiepocz,0);
    // print pomm << ' ' << pomm2 << nl;
    if(pomm2.size() > pomm.size()){
        print "NIE" << nl;
    }
    if(pomm2.size() == pomm.size()){
        if(pomm == pomm2){
            print "TAK" << nl;
        }
        else{
            print "NIE" << nl;
        }
    }
    if(pomm2.size() < pomm.size()){
        print "TAK" << nl;
    }
}

bool kolory(){
    bool zero = 0, jeden = 0;
    for(auto i : A){
        if(i == '1')
            jeden = 1;
        else
            zero = 1;
    }
    return (zero && jeden);
}

bool sprawdzWie(int v){
    for(auto i : G[v]){
        if(B[i] == B[v])
            return 1;
    }
    return 0;
}

void sprawdz(){
    rep(i,1,n){
        if(G[i].size() > 2){
            if(sprawdzWie(i)){
                print "TAK" << nl;
                return;
            }
        }
    }
    print "NIE" << nl;
}

void solve(){
	if(A == B){
        print "TAK" << nl;
        return;
    }
    if(n == 1){
        print "NIE" << nl;
        return;
    }
    bool sciezka = 1;
    rep(i,1,n){
        if(G[i].size() > 2)
            sciezka = 0;
    }
    if(sciezka){
        case1();
        return;
    }
    if(kolory()){
        sprawdz();
    }
    else{
        print "NIE" << nl;
        return;
    }
}

int main(){
	fastDataTransfer();
	int testCases = 1;
	cin >> testCases;
	rep(testNumber, 1, testCases){
		read();
		solve();
	}
}