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#include <cstdio>
#include <cstring>
#include <cmath>
#include <cassert>
#include <iostream>
#include <algorithm>
#include <iterator>
#include <string>
#include <vector>
#include <queue>
#include <bitset>
#include <utility>
#include <stack>

using namespace std;
typedef long long LL;
typedef pair<int,int> PII;
typedef vector<int> VI;
#define MP make_pair
#define FOR(v,p,k) for(int v=(p);v<=(k);++v)
#define FORD(v,p,k) for(int v=(p);v>=(k);--v)
#define REP(i,n) for(int i=0;i<(n);++i)
#define VAR(v,i) __typeof(i) v=(i)
#define FOREACH(i,c) for(VAR(i,(c).begin());i!=(c).end();++i)
#define PB push_back
#define ST first
#define ND second
#define SIZE(x) (int)x.size()
#define ALL(c) c.begin(),c.end()

#define ODD(x) ((x)%2)
#define EVEN(x) (!(ODD(x)))

int main() {
    int t;
    scanf("%d\n", &t);
    while (t--) {
        int n;
        scanf("%d\n", &n);
        VI from(n + 1), to(n + 1);

        int input_sum = 0, output_sum = 0;
        FOR(i, 1, n) {
            char c; 
            scanf("%c", &c); 
            from[i] = c - '0';
            input_sum += from[i];
        }
        scanf("\n");

        bool equal = true;
        FOR(i, 1, n) {
            char c;
            scanf("%c", &c);
            to[i] = c - '0';
            output_sum += to[i];
            if (from[i] != to[i]) {
                equal = false;
            }
        };
        scanf("\n");

        bool input_is_monocolor = ((input_sum % n) == 0);
        bool output_is_monocolor = ((output_sum % n) == 0);

        bool has_monocolor_edge = false; 
        vector<VI> neighs(n + 1);
        REP(i, n - 1) {
            int a, b;
            scanf("%d %d", &a, &b);
            neighs[a].PB(b);
            neighs[b].PB(a);
            if (to[a] == to[b]) {
                has_monocolor_edge = true;
            }
        }

        int max_deg = 0;
        FOR(i, 1, n) {
            max_deg = max(max_deg, (int) neighs[i].size());
        }
        bool is_list = (max_deg <= 2);

        bool res;
        if (from == to) {
            //printf("from==to\n");
            res = true;
        } else if (input_is_monocolor) {
            //printf("input_is_monocolor\n");
            res = false;
        } else if (output_is_monocolor) {
            //printf("output_is_monocolor\n");
            res = true;
        } else if (!is_list) {
            res = has_monocolor_edge;
            //printf("!is_list\n");
        } else {
            //printf("else\n");
            int source;
            FOR(i, 1, n) {
                if (neighs[i].size() == 1) { 
                    source = i;
                }
            }

            //printf("else2 %d\n", source);
            VI input_list_colors(n), output_list_colors(n);
            int prev = -1;
            REP(i, n) {
                input_list_colors[i] = from[source];
                output_list_colors[i] = to[source];
                FOREACH(it, neighs[source]) {
                    //printf("%d %d\n", source, *it);
                    if (*it != prev) {
                        prev = source;
                        source = *it;
                        break;
                    }
                }
            }

            //printf("else3 %d\n", source);
            int input_alter = 0, output_alter = 0;
            prev = input_list_colors[0];
            REP(i, n) {
                if (input_list_colors[i] != prev) {
                    input_alter++;
                }
                prev = input_list_colors[i];
            }

            prev = output_list_colors[0];
            REP(i, n) {
                if (output_list_colors[i] != prev) {
                    output_alter++;
                }
                prev = output_list_colors[i];
            }

            res = (output_alter < input_alter) || ((output_alter == input_alter) && (input_list_colors[0] == output_list_colors[0]));
        }
        printf("%s\n", res ? "TAK" : "NIE");
    }
    return 0;
}