uri 1171

#include <stdio.h>
int main()
{
    float n,t=0;
    int a,b,c;
    scanf("%f",&n);
    a = 4500.00-n || n - 4500.00;
    t+= (28*a)/100
    b = 3000.01-n || n - 3000.01;
    t+= (18*b)/100
    c = 2000.01-n || n - 3000.01;
    t+= (8*c)/100;

    printf("%f rs",t);
    return 0 ;
}