package main

import "fmt"

func read_from_c(c chan int, b chan int) {
	for item := range c {
		fmt.Printf("%d", item)
		number_multiplied := item * item
		b <- number_multiplied
	}
	close(b)
}

func read_from_b(b chan int) {
	for item := range b {
		fmt.Printf("%d", item)
	}
}

func main() {
	fmt.Println("main() started")
	c := make(chan int)
	b := make(chan int)

	fmt.Println("Operation started")
	go func() {
		fmt.Println("Running writer")
		for i := 1; i < 10; i++ {
			fmt.Printf("Adding %v to channel c", i)
			c <- i
		}
		close(c)
	}()

	go read_from_c(c, b)
	for item := range b {
		fmt.Printf("%d", item)
	}
}