Fitness Card

package main

import "fmt"

func main() {
    var cash float64
    fmt.Scanln(&cash)

    var gender string
    fmt.Scanln(&gender)

    var age int
    fmt.Scanln(&age)

    var sport string
    fmt.Scanln(&sport)

    sum := 0.0

    if gender == "m" {
        switch sport {
        case "Gym":
            sum = 42
        case "Boxing":
            sum = 41
        case "Yoga":
            sum = 45
        case "Zumba":
            sum = 34
        case "Dances":
            sum = 51
        case "Pilates":
            sum = 39
        }
    } else {
        switch sport {
        case "Gym":
            sum = 35
        case "Boxing":
            sum = 37
        case "Yoga":
            sum = 42
        case "Zumba":
            sum = 31
        case "Dances":
            sum = 53
        case "Pilates":
            sum = 37
        }
    }

    if age <= 19 {
        sum *= 0.8
    }

    if sum <= cash {
        fmt.Printf("You purchased a 1 month pass for %s.", sport)
    } else {
        fmt.Printf("You don't have enough money! You need $%.2f more.\n", sum - cash)
    }
}