Bot program to count the products bought in the supermarket, with total sum.

package main

import "fmt"

func main() {
  var (
    productName string
    price int
    amount int
    sum int
  )
  for {
    fmt.Print("Input product name: ")
    fmt.Scan(&productName)
    if productName == "" {
      break
    }
    fmt.Print("Input price: ")
    fmt.Scan(&price)
    fmt.Print("Input amount: ")
    fmt.Scan(&amount)
    sum += price * amount
    fmt.Printf("You bought product: %s, price: %d, amount: %d, total sum: %d\n", productName, price, amount, sum)
  }
  fmt.Printf("Final sum is %d\n", sum)
}