#include <iostream>

using namespace std;

int main() {
	int n, m;
	float tongchan = 0;
	float tongle = 0;
	float tongchan_am = 0;
	float tongle_am = 0;
	cout<<"Nhap n: "; cin>>n;
	cout<<"Nhap m: "; cin>>m;
	for (int i = -n; i <= m; i++) {
		if (i % 2 == 0) {
			if (i > 0) {
				tongchan += i;
			} else {
				tongchan_am += i;	
			}
		} else {
			if (i > 0) {
				tongle += i;
			} else {
				tongle_am += i;	
			}
		}
	}
	cout<<"Tong chan = "<<tongchan<<endl;
	cout<<"Tong chan am = "<<tongchan_am<<endl;
	cout<<"Tong le = "<<tongle<<endl;
	cout<<"Tong le am = "<<tongle_am;
	return 0;
}