#include<bits/stdc++.h>
using namespace std;
int main(){
	double a,discount,pay;
	scanf("%lf",&a);
	if(a<1000) discount=1;
	else if(a<2000) discount=0.95;
	else if(a<3000) discount=0.9;
	else if(a<5000) discount=0.85;
	else discount=0.8;
	pay=a*discount;
	printf("discount=%g,pay=%g",discount,pay); 
	return 0;
}