Oscars ceremony

package main

import "fmt"

func main() {
    var hallRent int
    fmt.Scanln(&hallRent)

    statues := float64(hallRent) * 0.7
    catering := statues * 0.85
    soundSystem := catering / 2

    fmt.Printf("%.2f\n", float64(hallRent) + statues + catering + soundSystem)
}