#include <iostream>
using namespace std;

int main() {
    int A, B;
    cin >> A;
    cin >> B;

    int parni_broevi = 0, zbir = 0;

    int i = A;
    while(i <= B) {
        if(i % 2 == 0) {
            zbir += i;
            parni_broevi++;
        }
        i++;
    }
    cout << "Broj na parni broevi: " << parni_broevi << endl;
    cout << "Zbir " << zbir << endl;
    return 0;
}