05. Account Balance

package main

import (
    "fmt"
    "strconv"
)

func main() {
    var input string
    fmt.Scanln(&input)

    var sum = 0.0

    for i:= 0; input != "NoMoreMoney"; i++ {
        money,_ := strconv.ParseFloat(input, 64)
        if money < 0 {
            fmt.Println("Invalid operation!")
            break
        }
        sum += money
        fmt.Printf("Increase: %.2f\n", money)
        fmt.Scanln(&input)
    }

    fmt.Printf("Total: %.2f\n", sum)
}