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#include <stdio.h>
#include <stdlib.h>

char set(unsigned int *S,unsigned int N,char c)
{
unsigned int n,o,G,g;

	n = (N-1) / 6;
	o = (N-1) % 6;
	
	G = c - 'a';
	for (g = 0; g < o; g++) G *= 26;
	S[n] += G;
	
//	printf("Set: %u %u %u\n",n,o,G);
	return c;
}

char get(unsigned int *S,unsigned int N)
{
unsigned int n,o,G,g;

	n = N / 6;
	o = N % 6;
	
	G = S[n];
	for (g = 0; g < o; g++) G /= 26;
	G %= 26;
//	printf("Get: %u %u %u %u\n",N,n,o,G);
	
	return 'a'+G;
}

int main()
{
char c;
unsigned int N,n,MAX = 3333334,*S;

	scanf("%u",&MAX); //ignore
	if (MAX == 0) MAX = 3333334;
	
	S = (unsigned int*) malloc(MAX*sizeof(unsigned int));
	N = 0;
	while ((c = getchar()) < 'a' || c > 'z');
	do {
//		printf("%c %u\n",c,c-'a');
		N++;
		set(S,N,c);
	} while ((c = getchar()) >= 'a' && c <= 'z');
	
	n = 0;
	while (n < N/2 && get(S,n) == get(S,N-n-1)) n++;

	if (n == N/2) printf("TAK\n"); else printf("NIE\n");
	
	free(S);
	
	return 0;
}