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#include <bits/stdc++.h>

using namespace std;

int s;
bool kk;
string a;
int main ()
{

scanf("%d",&s);
cin>>a;
s=a.size();

for (int i=0;i<s/2+1;i++)
{
	if (a[i]!=a[s-1-i])
	{
		kk=1;
		break;
	}
	
}

if (kk==1)
printf("NIE");
else
printf("TAK");

return 0;
}