1046 划拳 （15 分)

#include <iostream>
using namespace std;
int main(){
    int n, A, a, cntA = 0, B, b, cntB = 0;
    cin >> n;
    while (n--){
        cin >> A >> a >> B >> b;
        if ((a != A + B && b != A + B) || (a == A + B && b == A + B))
            continue;
        else if (a == A + B)
            cntB++;
        else if (b == A + B)
            cntA++;
    }
    cout << cntA << ‘ ‘ << cntB << endl;
    return 0;
}