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#include <iostream>
#include <vector>
#include <climits>

int main(){
	int tests = 0;
	std::cin >> tests;
	for (int k = 0; k < tests; k++) {
		int kids;
		bool possible = true;
		std::cin >> kids;
		//std::vector<int> volume; std::vector<int> currTemp; std::vector<int> targetTemp;
		int minCurrTemp = INT_MAX, maxTarTemp = 0;
		int minTarTemp = minCurrTemp, maxCurrTemp = maxTarTemp;
		double currtotalratio = 0;
		double currTempSum = 0;
		double tarTempSum = 0;
		double tartotalratio = 0;
		int currTemp, currVol;
		for (int h = 0; h < kids; h++) {
			std::cin >> currVol;
			//volume.push_back(curr);
			std::cin >> currTemp;
			currtotalratio += currTemp * currVol;
			currTempSum += currTemp;
			//currTemp.push_back(curr);
			minCurrTemp = currTemp < minCurrTemp ? currTemp : minCurrTemp;
			maxCurrTemp = currTemp < maxCurrTemp ? currTemp : maxCurrTemp;
			std::cin >> currTemp;
			tarTempSum += currTemp;
			tartotalratio += currTemp * currVol;
			//targetTemp.push_back(curr);
			minTarTemp = currTemp < minTarTemp ? currTemp : minTarTemp;
			maxTarTemp = currTemp < maxTarTemp ? currTemp : maxTarTemp;
		}
		if (minCurrTemp > minTarTemp)
			possible = false;
		else if (maxTarTemp > maxCurrTemp)
			possible = false;
		else if (currtotalratio / currTempSum != tartotalratio / tarTempSum)
			possible = false;
		if (possible)
			std::cout << "TAK\n";
		else
			std::cout << "NIE\n";
	}
}