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#include <iostream>
#include <map>
using namespace std;
map<char,int>m,n;
int x,t[27],tab[27];
string a,b;

int main()
{   ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);

    cin>>x;
    cin>>a>>b;





    for(int i=0;i<x;++i){
        if(i%2==0){
            m[a[i]]++;
            m[b[i]]++;
        }
        else{
            n[a[i]]++;
            n[b[i]]++;
        }
        t[int(a[i])-96]++;
        tab[int(b[i])-96]++;
    }

    for(int i=1;i<27;++i){
        if(t[i]!=tab[i]){
            cout<<"NIE";
            return 0;
        }
    }

    for(map<char,int>::iterator it=m.begin();it!=m.end();it++){
            if(it->second%2!=0){
                cout<<"NIE";
                return 0;
            }
    }
    for(map<char,int>::iterator it=n.begin();it!=n.end();it++){
            if(it->second%2!=0){
                cout<<"NIE";
                return 0;
            }
    }

cout<<"TAK";



    return 0;
}