#include<iostream>
#include<stdio.h>
using namespace std;
int main(){
double x;
cin>>x;
if(x>=10000.00)x*=0.05;
else if(x>=5000.00&&x<10000.00)x*=0.03;
else if(x>=1000.00&&x<5000.00)x*=0.02;
else if(x>=0.00&&x<1000.00)x*=0.00;
printf("Tax=%.2fyuan",x);
return 0;
}