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

#define debug if(0)
#define pb push_back
#define mp make_pair
#define ff first
#define ss second

#define MAXN 300005

int n;
char s1[MAXN], s2[MAXN];

int ile[32][2];

int main() {

    scanf ("%d", &n);
    scanf ("%s", s1 + 1);
    scanf ("%s", s2 + 1);
    
    for (int i = 1; i <= n; ++i) {
        ++ile[s1[i] - 'a'][i&1];
    }
    
    for (int i = 1; i <= n; ++i) {
        --ile[s2[i] - 'a'][i&1];
        
        if (ile[s2[i] - 'a'][i&1] < 0) {
            puts ("NIE");
            return 0;
        }
    }
    
    puts ("TAK");

    return 0;
}