#include<bits/stdc++.h> using namespace std; int main(){ int m,n; cin>>m>>n; int sum=0,mus=0; for(m;m<=n;m++){ if(m%2==0){ sum+=m; } else{ mus+=m; } } cout<<"偶数和"<<sum<<" "<<"奇数和"<<mus; return 0; }