05. Pets

package main
import (
    "fmt"
    "math"
)

func main() {
    var days, foodKg, dogKg, catKg, turtleGr float64
    fmt.Scanln(&days)
    fmt.Scanln(&foodKg)
    fmt.Scanln(&dogKg)
    fmt.Scanln(&catKg)
    fmt.Scanln(&turtleGr)

    var totalKg = (dogKg + catKg + turtleGr / 1000) * days

    if (foodKg >= totalKg) {
        fmt.Printf("%d kilos of food left.",(int)(foodKg - totalKg))
    } else {
            fmt.Printf("%d more kilos of food are needed.", (int)(math.Ceil(totalKg - foodKg)));
    }
}