/*
 * Complete the 'beautifulPairs' function below.
 *
 * The function is expected to return an INTEGER.
 * The function accepts following parameters:
 *  1. INTEGER_ARRAY A
 *  2. INTEGER_ARRAY B
 */

void _print(const multiset<int>& s) {
    for (auto e: s) { cout << e << " "; }
    cout << endl;
}

int beautifulPairs(vector<int> A, vector<int> B) {
    multiset<int> ms(B.begin(), B.end());
    
    int count = 0;
    for (auto a: A) {
        auto it = ms.find(a);
        if (it != ms.end()) {
            count++;
            ms.erase(it);
        }
    }    
    // cout << count << endl;
    // _print(ms);
    
    if (ms.empty()) { return count - 1; }
    return count + 1;
}