Golang

https://gyazo.com/4b0fd2d536ad3d6ce030375e65249ac0

https://gyazo.com/eded3ee44f671de06ac1b776ec59c4d1

https://gyazo.com/c650a840a66ef2a97352904724d65a09

https://gyazo.com/680112de837c8ba749880e6fcea562a0

https://gyazo.com/ce75c2960a31c46e73bf99a415efaac9

https://gyazo.com/f0aafec449cf9d9a6947105438ea87df