#include <stdio.h>
#include <iostream>
#include <vector>
#include <queue>

using namespace std;

int main() {

	int first_guy[150000];
	int guyB[150000];
	int guyC[150000];

	while (true) {
		int resultCount = 0;

		int numOfTasks;

		cin >> numOfTasks;	
		if (numOfTasks == 0) break;

		for (int i = 0; i < numOfTasks; i++) { // first guy
			cin >> first_guy[i];
		}

		for (int i = 0; i < numOfTasks; i++) { // second one
			int input;
			cin >> input;
			guyB[input] = i;
		}

		for (int i = 0; i < numOfTasks; i++) { // third one
			int input;
			cin >> input;
			guyC[input] = i;
		}

		for (int i = 0; i < numOfTasks; i++)
			for (int j = i+1; j < numOfTasks; j++)
				if ( (guyB[first_guy[i]] < guyB[first_guy[j]]) && (guyC[first_guy[i]] < guyC[first_guy[j]]) ) {
					resultCount++;
				}
					

		cout << resultCount << endl; 
	}

	return 0;
}