#include <stdio.h>
 
int main(){
 
 double money,tax;
 
 money = 15e8;
 
 if(money<=1e8){
  tax=1e8*0.1;}
 else if(money<=5e8){
  tax=1e8*0.1+(money-1e8)*0.2;}
 else if(money<=10e8){
  tax=1e8*0.1+4e8*0.2+(money-5e8)*0.3;}
 else if(money<=30e8){
  tax=1e8*0.1 + 4e8*0.2 + 5e8*0.3 + (money-1e9)*0.4;}
 else
  tax=1e8*0.1+4e8*0.2+5e8*0.3+20e8*0.4+(money-30e8)*0.5;
 printf("상속세는 %lf",tax);
 
 return 0;
}