#include <iostream>
using namespace std;
int main() {
    int a, b;
    cin >> a >> b;
    
    int brojac = 0;
    int zbir = 0;
    
    while(a <= b) {
        if(a % 2 == 0) {
            brojac++;
            zbir += a;
        }
        a++;
    }
    cout << brojac << endl;
    cout << zbir << endl;
        
    return 0;
}