package main

import (
	"fmt"
	"math/big"
	"encoding/json"
)

type Simple struct {
	I big.Int
}

type List struct {
	S []Simple
}

func main() {
	i := big.Int{}
	b := []byte{
		0x55, 0x55, 0x55, 0x55, 0x55, 
		0x55, 0x55, 0x55, 0x55, 0x55}
		
	i.SetBytes(b)
	
	fmt.Println("b", b)
	fmt.Println("i", i)
	
	// marshal and unmarshal big int
	j, _ := json.Marshal(i)
	// fmt.Println("ji", j)
	
	i2 := big.Int{}
	_ = json.Unmarshal(j, &i2)
	fmt.Println("i2", i2)
	
	// marshal and unmarshal big int in struct
	s := Simple{
		I: i}
		
	j, _ = json.Marshal(s)
	// fmt.Println("js", j)
	
	s2 := Simple{}
	_ = json.Unmarshal(j, &s2)
	fmt.Println("s2", s2)
	
	// marshal and unmarshal big int in struct in list
	l := List{}
	l.S = append(l.S, s)
	
	j, _ = json.Marshal(l)
	// fmt.Println("jl", j)
	
	l2 := List{}
	_ = json.Unmarshal(j, &l2)
	fmt.Println("l2", l2)
}