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#include<bits/stdc++.h>
#include<chrono>
#define ff first
#define ss second
#define eb emplace_back
#define putchar putchar_unlocked
#define getchar getchar_unlocked
#define debug if(0)
using namespace std;
typedef long long int LL;
typedef long double LD;
typedef short int SH;

inline void readI(int *i)
{
	register int r=0;
	register char c=getchar();
	int z=1;
	if(c == '-')
	{
		z=-1;
	}
	while(c < '0' || c > '9')
	{
		c=getchar();
		if(c == '-')
		{
			z=-1;
		}
	}
	while(c >= '0' && c <= '9')
	{
		r=(r<<3)+(r<<1)+c-'0';
		c=getchar();
	}
	*i=(r*z);
}
inline void readUI(int *i)
{
	register int r=0;
	register char c=getchar();
	while(c < '0' || c > '9')
	{
		c=getchar();
	}
	while(c >= '0' && c <= '9')
	{
		r=(r<<3)+(r<<1)+c-'0';
		c=getchar();
	}
	*i=r;
}
inline void readLL(LL *l)
{
	register LL r=0;
	register char c=getchar();
	int z=1;
	if(c == '-')
	{
		z=-1;
	}
	while(c < '0' || c > '9')
	{
		c=getchar();
		if(c == '-')
		{
			z=-1;
		}
	}
	while(c >= '0' && c <= '9')
	{
		r=(r<<3)+(r<<1)+c-'0';
		c=getchar();
	}
	*l=(r*z);
}
inline void readULL(LL *l)
{
	register LL r=0;
	register char c=getchar();
	while(c < '0' || c > '9')
	{
		c=getchar();
	}
	while(c >= '0' && c <= '9')
	{
		r=(r<<3)+(r<<1)+c-'0';
		c=getchar();
	}
	*l=r;
}
inline void write(LL l)
{
	if(!l)
	{
		putchar(48);
	}
	else
	{
		if(l < 0)
		{
			l^=-1;
			++l;
			putchar(45);
		}
		int p=0,h[21];
		while(l)
		{
			++p;
			h[p]=(l%10)+48;
			l/=10;
		}
		for(int i=p+1; --i;)
		{
			putchar(h[i]);
		}
	}
}
inline void writeS(string s)
{
	int l=s.length();
	for(int i=0; i^l; ++i)
	{
		putchar(s[i]);
	}
}

char c;
int n,k[27][2];
int main()
{
	readUI(&n);
	for(int i=0; i^n; ++i)
	{
		++k[getchar()-'a'][i&1];
	}
	getchar();
	for(int i=0; i^n; ++i)
	{
		--k[getchar()-'a'][i&1];
	}
	for(int i=0; i^26; ++i)
	{
		if(k[i][0] || k[i][1])
		{
			writeS("NIE");
			return 0;
		}
	}
	writeS("TAK");
	return 0;
}