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#include<cstdio>

const int SIZE = 300*1001;

char bi[SIZE];
char ba[SIZE];

int cnt[26][2];

bool chck() {
    for (int i = 0; i < 26; ++i) {
        for (int j = 0; j < 2; ++j) {
            if (cnt[i][j] != 0)
                return false;
        }
    }
    return true;
}

int main() {
    int n;
    scanf("%i", &n);
    scanf("%s", bi);
    scanf("%s", ba);
    
    //printf("%s\n", bi);
    //printf("%s\n", ba);
    
    for (int i = 0; i < 26; ++i)
        for (int j = 0; j < 2; ++j)
            cnt[i][j] = 0;
    
    for (int i = 0; i < n; ++i) {
        cnt[bi[i] - 'a'][i%2]++;
        cnt[ba[i] - 'a'][i%2]--;
    }
    
    if (chck()) {
        printf("TAK\n");
    } else {
        printf("NIE\n");
    }
    
    return 0;
}