Painting Eggs

package main

import "fmt"

func main() {
    var size, color string
    fmt.Scanln(&size)
    fmt.Scanln(&color)

    var volume int
    fmt.Scanln(&volume)

    sum := 0

    switch size {
    case "Large":
        switch color {
        case "Red":
            sum = 16
        case "Green":
            sum = 12
        case "Yellow":
            sum = 9
        }
    case "Medium":
        switch color {
        case "Red":
            sum = 13
        case "Green":
            sum = 9
        case "Yellow":
            sum = 7
        }
    case "Small":
        switch color {
        case "Red":
            sum = 9
        case "Green":
            sum = 8
        case "Yellow":
            sum = 5
        }
    }

    total := float64(sum * volume) * 0.65
    fmt.Printf("%.2f leva.\n", total)
}