#include <iostream>
using namespace std;
 
const int MAX_LENGTH = 10;
const int TEN = 10;
 
int main() {
	int n, v[MAX_LENGTH + 1], w[MAX_LENGTH + 1];
	cin >> n;
	int freqV[TEN] = {0}, freqW[TEN] = {0};
	for (int i = 1; i <= n; ++i) {
		cin >> v[i];
		while (v[i]) {
			++freqV[v[i] % TEN];
			v[i] /= TEN;
		}
	}
	for (int i = 1; i <= n; ++i) {
		cin >> w[i];
		while (w[i]) {
			++freqW[w[i] % TEN];
			w[i] /= TEN;
		}
	}
	int countPairs = 0;
	for (int i = 0; i < TEN; ++i) {
		if (freqV[i] == freqW[i] && freqV[i] != 0 && freqW[i] != 0) {
			++countPairs;
		} 
	}
	cout << countPairs;
	return 0;
}

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Cgo1Cjk5IDg4IDc3IDk5IDEwMAo5OSA4MCA3NyA5OSAxMDAKRGF0ZSBpZciZaXJlOgotJmd0OyAzCg==

5
99 88 77 99 100
99 80 77 99 100
Date ieșire:
-> 3