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#include <iostream>
#include<vector>
#include<string>
using namespace std;

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    vector<int>p(26,0); vector<int>np(26,0);
    string s; int n;
    cin>>n>>s;
    for(int i = 0;i<n;++i){
        if(i%2==0){
            ++p[s[i]-'a'];
        }
        else ++np[s[i]-'a'];
    }
    cin>>s;
    bool tak=true;
    for(int i = 0;i<n;++i){
        if(i%2==0){
            --p[s[i]-'a'];
            if(p[s[i]-'a']<0){
                tak=false; break;
            }
        }
        else {
        --np[s[i]-'a'];
        if(np[s[i]-'a']<0){
                tak=false; break;
            }
        }
    }
    if(tak)cout<<"TAK";
    else cout<<"NIE";
    return 0;
}