我一次性AC这道题，用时15分钟；

#include<iostream>
using namespace std;
int main()
{
    //freopen("xxx.in","r",stdin);
    //freopen("yyy.out","w",stdout);
    int a,b,t;
    cin >> a >> b;
    int sum=0;
    while(a>0 && b>0)
    {
        if(a>b)
        {
            t=a;
            a=b;
            b=t;
        }
        sum=0;
        for(int i=a;i<=b;i++)
        {
            cout << i << " ";
            sum=sum+i;
        }
        cout << "Sum=" << sum << '\n';
        cin >> a >> b;
    }


    //fclose(stdin);
    //fclose(stdout);
    return 0;
}