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#include<bits/stdc++.h>
#define ull unsigned long long
#define ll long long
using namespace std;
const ll mod=1e9+7;
int main(){
	int n,i,p=313,p2=2137;
	char c;
	cin >>n;
	scanf("%c",&c);
	ull h1=0,h2=0,pot=1;
	ll hh1=0,hh2=0,pp=1;
	while(scanf("%c",&c)){
		if(c<'a' || c>'z'){
			break;
		}
		h1=h1*p+c;
		h2=h2+c*pot;
		pot=pot*p;
		
		hh1=(hh1*p2+c)%mod;
		hh2=(hh2+pp*c)%mod;
		pp*=p2;
		pp%=mod;
	}
	if(h1==h2 && hh1==hh2){
		cout <<"TAK";
	}
	else{
		cout <<"NIE";
	}
}