#include<stdio.h>
void main()
{
    long int i;
   int bonus;
    printf("please input a number\n");
    scanf("%ld",&i);
 if(i>0&&i<100000)
     bonus=i*0.1;
 else if(i>10000&&i<=20000)
     bonus=10000*0.1+(i-10000)*0.075;

 else if(i>20000&&i<=40000)
     bonus=10000*0.1+10000*0.75+(i-20000)*0.5;
 
 else if
     bonus=10000*0.1+10000*0.75+20000*0.5+(i-40000)*0.25;
 
 else
     bonus=10000*0.1+10000*0.75+20000*0.5+40000*0.25+(i-40000)*0.1;
 
     printf("bonus=%d",bonus);
 }