#include <iostream> using namespace std; int main() { int n, m; cin >> n >> m; int sum_even = 0; // 偶数和 int sum_odd = 0; // 奇数和 for (int i = m; i <= n; ++i) { if (i % 2 == 0) sum_even += i; else sum_odd += i; } cout << sum_even << " " << sum_odd; return 0; }