Simple map in golang

mapSimple.go

package main
//http://play.golang.org/p/0KdITlFYrV
import "fmt"

func main() {

	H := make(map[string]int)
	for i := 0; i < 3; i++ {
		s := fmt.Sprintf("one%d", i)
		H[s] = H[s] + 1
	}
	H["one1"] = H["one1"] + 1

	for k, v := range H {
		fmt.Println(k, v)
	}
}