// Chapter 20 example: accumulate the sum of 1 to 20.
// Add the count pattern below to print how many are even.
// Run with: go run exercises/20/01-patterns.go

package main

import "fmt"

func main() {
	sum := 0
	for i := 1; i <= 20; i++ {
		sum += i
	}
	fmt.Println("sum", sum)
}