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#include<bits/stdc++.h>
using namespace std;
using LL = long long;
using D = double;
#define f1 first
#define f2 second
#define randint(a, b) uniform_int_distribution<int>{a, b}(gen)
#ifdef LOC
void OUT() {cout << '\n';}
template<class H, class ... T> void OUT(H h, T ... t)
{
	cout << h << ' ';
	OUT(t...);
}
#define P(...) cout << "[" << #__VA_ARGS__ << "] ", OUT(__VA_ARGS__)
#else
#define P(...)
#define OUT(...)
#endif
//mt19937 gen;
int n;
string a, b;
int xd[256][2];
int main(int, char ** /*args*/)
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cin >> n;
	for(int t = 0; t < 2; ++t)
	{
		cin >> a;
		for(int i = 0; i < n; ++i)
		{
			++xd[(int)a[i]][i % 2];
		}
		for(int i = 0; i < 256; ++i) for(int j = 0; j < 2; ++j) xd[i][j] = -xd[i][j];
	}
	for(int i = 0; i < 256; ++i)
		for(int j = 0; j < 2; ++j)
			if(xd[i][j] != 0)
			{
				cout << "NIE";
				return 0;
			}
	cout << "TAK";
	return 0;
}