#include<stdio.h>int main(){?float l;?scanf("%f",&l);?if(l<=10)??l=0.1*l;?else if(10<l<=20)??l=1+(l-10)*0.075;?else if(20<l<=40)??l=1.75+(l-20)*0.05;?else if(40<l<=60)??l=2.75+(l-40)*0.03;?else if(60<l<=100)??l=2.75+20*0.03+(l-60)*0.015;?else??l=3.35+40*0.015+(l-100)*0.01;?printf("%f",l);?return 0;}
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