Hajime Nakagami nakagami

## main.go
package main

import (
	"fmt"

	"golang.org/x/exp/constraints"
)

type List[T any] struct {
	head *T
	package main

	import (
	"fmt"

	"golang.org/x/exp/constraints"
	)

	type List[T any] struct {
	head *T