#include <iostream>
using namespace std;
int main()
{
// 初始的账号:2023, 密码:123456
int a,b;
cout<<"用户名:";
cin>>a;
cout<<"密码:";
cin>>b;
if(a == 2023)
if(b==123456)
cout<<"登录成功";
else
cout<<"密码错误 ";
else
cout<<"用户名错误";
return 0;
}