Grandpa Stavri

package main

import "fmt"

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

    var currentLiters, currentGradus, averageGradus, totalLiters float64

    for i := 0; i < days; i++ {
        fmt.Scanln(&currentLiters)
        fmt.Scanln(&currentGradus)
        averageGradus += currentLiters * currentGradus
        totalLiters += currentLiters
    }

    averageGradus /= totalLiters

    fmt.Printf("Liter: %.2f\nDegrees: %.2f\n", totalLiters, averageGradus)

    if averageGradus < 38 {
        fmt.Println("Not good, you should baking!")
    } else if averageGradus > 42 {
        fmt.Println("Dilution with distilled water!")
    } else {
        fmt.Println("Super!")
    }
}