Cat Shelter

package main

import (
  "fmt"
  "strconv"
)

func main() {
    var foodKg, foodEaten int
    fmt.Scanln(&foodKg)

    foodGrams := foodKg * 1000

    var command string
    fmt.Scanln(&command)

    for command != "Adopted" {
        foodEaten, _ = strconv.Atoi(command)
        foodGrams -= foodEaten
        fmt.Scanln(&command)
    }

    if foodGrams >= 0 {
        fmt.Printf("Food is enough! Leftovers: %d grams.\n", foodGrams)
    } else {
        fmt.Printf("Food is not enough. You need %d grams more.\n", foodGrams * -1)
    }
}