#include<iostream>
using namespace std;
int main()
{
int n;
cin >> n ;
if (n < 4)
cout << n * 95;
else
printf("%.2f元", n * 95 * 0.85);
return 0;
}
来源:CSDN
作者:qq_46264636
链接:https://blog.csdn.net/qq_46264636/article/details/104339127