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

typedef long long LL;
typedef long double LD;
typedef pair<int, int> PII;
typedef pair<LL, LL> PLL;

#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()

template<typename _T> inline void _DBG(const char *s, _T x) { cerr << s << " = " << x << "\n"; }
template<typename _T, typename... args> void _DBG(const char *s, _T x, args... a) { while(*s != ',') cerr << *s++; cerr << " = " << x << ','; _DBG(s + 1, a...); }

#ifdef LOCAL
#define _upgrade ios_base::sync_with_stdio(0);
#define DBG(...) _DBG(#__VA_ARGS__, __VA_ARGS__)
#else
#define _upgrade ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define DBG(...) (__VA_ARGS__)
#define cerr if(0) cout
#endif

// ********************** CODE ********************** //

int cnt[2][26];

int main()
{
    _upgrade
    
    int n;
    cin >> n;
    for(int i = 0; i < 2; i++)
    {
        string s;
        cin >> s;
        int val = i == 0 ? 1 : -1;
        for(int j = 0; j < n; j++)
            cnt[j % 2][s[j] - 'a'] += val;
    }

    bool ok = true;
    for(int i = 0; i < 2; i++)
        for(int j = 0; j < 26; j++)
            ok &= cnt[i][j] == 0;

    cout << (ok ? "TAK\n" : "NIE\n");

    return 0;
}