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#include<bits/stdc++.h>

#define FOR(i,be,en) for(int i=be; i<en; i++)

using namespace std;
const int MAXN=3e5+5;

int Bi[2][26];
int Ba[2][26];

bool Possible(){
	FOR(i,0,2){
		FOR(j,0,26){
			if(Bi[i][j]!=Ba[i][j]) return false;
		}
	}
	return true;
}

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	int n;
	string a,b;
	cin>>n>>a>>b;
	
	FOR(i,0,n){
		Bi[(i&1)][a[i]-'a']++;
		Ba[(i&1)][b[i]-'a']++;
	}
	
	if(Possible()) cout<<"TAK";
	else cout<<"NIE";
	
	
	return 0;
}