import java.util.Scanner;
public class Main {
public static void main
(string[] args
) {
Scanner scan =
new Scanner
(system.
in);
int number =
integer.
parseInt(scan.
nextLine());
double bonus = 0;
if(number<=100){bonus =5;}
else if(number>100){bonus=number*0.2;}
else if(number>1000){bonus=number*0.1;}
if(number%2==0){bonus+=1;}
else if(number%10==5){bonus+=2;}
system.
out.
println(number+bonus
);
}
}