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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

struct Hash{
    ll B, MOD, VAL = 0, IL = 1;
    
    void init(ll b, ll m){
        B = b; MOD = m;
    }
    
    void add(ll a){
        a = (a*IL)%MOD;
        VAL = (VAL+a)%MOD;
        IL = (IL*B)%MOD;
    }
    
    long long getHash(){
        return VAL;
    }
};

struct HashR{
    ll B, MOD, VAL = 0;
    
    void init(ll b, ll m){
        B = b; MOD = m;
    }
    
    void add(ll a){
        VAL = (VAL*B + a)%MOD;
    }
    
    long long getHash(){
        return VAL;
    }
};

int main(){
    ios_base::sync_with_stdio(0);
    int n; cin >> n;
    
    Hash HA; HashR HAr;
    HA.init(513083, 1e12+39); HAr.init(513083, 1e12+39);
    
    Hash HB; HashR HBr;
    HB.init(417187, 1e12-11); HBr.init(417187, 1e12-11);
    
    char ch;
    while(cin >> ch){
        ll a = ch-'a'+1;
        HA.add(a);
        HAr.add(a);
        HB.add(a);
        HBr.add(a);
    }
    
    if(HA.getHash() == HAr.getHash() && HB.getHash() == HBr.getHash())
        cout << "TAK\n";
    else
        cout << "NIE\n";
}