#include <iostream>
using namespace std;
 
int main() {
	const int MAX_LEN = 20;
	int currentNum, maxUnicNum = 0 , indexLine;
	cin >> currentNum;
	for (int i  = 1; i <= currentNum; ++i) {
		cout << "line = " << i << endl;
		int frq[MAX_LEN + 1] = {0}, unicNum = 0;
		for (int j = 1; j <= currentNum; ++j) {
			cin >> currentNum;
			if (frq[currentNum] == 0) {
				++unicNum;
			}
			++frq[currentNum];
		}
		cout << "unicNum = " << unicNum << endl;
		if (unicNum > maxUnicNum) {
			maxUnicNum = unicNum;
			indexLine = i;
		}
	}
	cout << indexLine;
	return 0;
}

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NQoxIDIgNCA0IDQKNSA0IDMgMiAyCjUgNSA1IDUgNSAKNiA3IDggOSA3CjYgNyA4IDkgNwo=

5
1 2 4 4 4
5 4 3 2 2
5 5 5 5 5 
6 7 8 9 7
6 7 8 9 7