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#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define pb push_back
typedef pair <int, int> pii;
typedef long long ll;
typedef double db;

const int A = 26;

int n;
string s1, s2;
int a[A + 5][2];

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);	
	
	cin >> n >> s1 >> s2;
	for(int i=0; i<n; i++){
		a[s1[i] - 'a'][i % 2] ++;
		a[s2[i] - 'a'][i % 2] --;
	}
	for(int i=0; i<A; i++){
		if(a[i][0] != 0 or a[i][1] != 0){
			return cout << "NIE\n", 0;
		}
	}
	cout << "TAK\n";
	
	return 0;
}