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#include <cstdint>
#include <iostream>
using namespace std;

namespace {

using u32 = uint32_t;
using u64 = uint64_t;

template <u32 Mod, u32 Base>
class ModHash {
private:
  u32 value;

  u32 base_power(int exp)
  {
    if (exp == 0) return 1;
    if (exp == 1) return Base;
    auto tmp = base_power(exp / 2);
    u32 res = u64{tmp} * tmp % Mod;
    if (exp % 2 == 1) {
      res = u64{res} * Base % Mod;
    }
    return res;
  }

public:
  ModHash(): value{0}
  {
  }

  ModHash(u32 v): value{v}
  {
    if (value >= Mod) value %= Mod;
  }

  ModHash& operator<<=(int len)
  {
    value = value * u64{base_power(len)} % Mod;
    return *this;
  }

  ModHash& operator+=(ModHash const& rhs)
  {
    value += rhs.value;
    if (value >= Mod) value -= Mod;
    return *this;
  }

  ModHash& operator+=(u32 rhs)
  {
    if (rhs < Mod) value += rhs;
    else value += rhs % Mod;
    if (value >= Mod) value -= Mod;
    return *this;
  }

  ModHash& operator*=(ModHash const& rhs)
  {
    value = u64{value} * rhs.value % Mod;
    return *this;
  }

  friend bool operator==(ModHash const& lhs, ModHash const& rhs)
  {
    return lhs.value == rhs.value;
  }
};

template <u64 Base>
class WrapHash {
private:
  u64 value;

  u64 base_power(int exp)
  {
    if (exp == 0) return 1;
    if (exp == 1) return Base;
    auto tmp = base_power(exp / 2);
    auto res = tmp * tmp;
    if (exp % 2 == 1) {
      res *= Base;
    }
    return res;
  }

public:
  WrapHash(): value{0}
  {
  }

  WrapHash(u32 v): value{v}
  {
  }

  WrapHash& operator<<=(int len)
  {
    value *= base_power(len);
    return *this;
  }

  WrapHash& operator+=(WrapHash const& rhs)
  {
    value += rhs.value;
    return *this;
  }

  WrapHash& operator+=(u32 rhs)
  {
    value += rhs;
    return *this;
  }

  WrapHash& operator*=(WrapHash const& rhs)
  {
    value *= rhs.value;
    return *this;
  }

  friend bool operator==(WrapHash const& lhs, WrapHash const& rhs)
  {
    return lhs.value == rhs.value;
  }
};
template <typename... Hs>
class MultiHash;

template <>
class MultiHash<> {
public:
  MultiHash()
  {
  }

  MultiHash(u32)
  {
  }

  MultiHash& operator<<=(int)
  {
    return *this;
  }

  MultiHash& operator+=(MultiHash const&)
  {
    return *this;
  }

  MultiHash& operator+=(u32)
  {
    return *this;
  }

  MultiHash& operator*=(MultiHash const&)
  {
    return *this;
  }

  friend bool operator==(MultiHash const&, MultiHash const&)
  {
    return true;
  }
};

template <typename H, typename... Hs>
class MultiHash<H, Hs...>: private MultiHash<Hs...> {
private:
  using Parent = MultiHash<Hs...>;

  H hash;

  Parent& parent()
  {
    return *this;
  }

  Parent const& parent() const
  {
    return *this;
  }

public:
  MultiHash(): Parent{}, hash{}
  {
  }

  MultiHash(u32 v): Parent{v}, hash{v}
  {
  }

  MultiHash& operator<<=(int len)
  {
    parent() <<= len;
    hash <<= len;
    return *this;
  }

  MultiHash& operator+=(MultiHash const& rhs)
  {
    parent() += rhs.parent();
    hash += rhs.hash;
    return *this;
  }

  MultiHash& operator+=(u32 rhs)
  {
    parent() += rhs;
    hash += rhs;
    return *this;
  }

  MultiHash& operator*=(MultiHash const& rhs)
  {
    parent() *= rhs.parent();
    hash *= rhs.hash;
    return *this;
  }

  friend bool operator==(MultiHash const& lhs, MultiHash const& rhs)
  {
    return lhs.parent() == rhs.parent() && lhs.hash == rhs.hash;
  }
};

using Hash = MultiHash<
  ModHash<1003162753, 1001>,
  ModHash<1023893771, 1003>,
  ModHash<1044645379, 1003>,
  WrapHash<1316196199>
>;

bool solve()
{
  int n;
  cin >> n;

  Hash forward{};
  Hash reverse{};
  Hash shift{1};

  char c;
  while (cin >> c) {
    forward <<= 1;
    forward += c;
    Hash tmp = shift;
    tmp *= c;
    reverse += tmp;
    shift <<= 1;
  }

  return forward == reverse;
}

}

int main()
{
  iostream::sync_with_stdio(false);
  cin.tie(nullptr);

  cout << (solve() ? "TAK" : "NIE") << endl;

  return 0;
}