#include<bits/stdc++.h> using namespace std; int main(){ int n,m; long long sum1=0,sum2=0; cin>>n>>m;//n起点 m终点 for(int i = n;i<=m;i++){//n m if(i%2==0){ sum1+=i;//偶数 }else{ sum2+=i;//奇数 } //1 } //2 cout<<sum1<<" "<<sum2; return 0; }