02. Sum Prime Non Prime

package main

import (
    "fmt"
    "strconv"
)

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

    var primeSum = 0
    var nonPrimeSum = 0

    for ; input != "stop"; {
        var number, _ = strconv.Atoi(input)
        if number >= 0 {
            if number % 2 == 0 || number % 3 == 0 || number % 5 == 0 {
                if number == 2 || number == 3 || number == 5 || number == 7 {
                    primeSum += number
                } else {
                    nonPrimeSum += number
                }
            } else {
                primeSum += number
            }
        } else {
            fmt.Println("Number is negative.")
        }
        fmt.Scanln(&input)
    }

    fmt.Printf("Sum of all prime numbers is: %d\n", primeSum)
    fmt.Printf("Sum of all non prime numbers is: %d\n", nonPrimeSum)
}