Revision 4068ade9-3922-471c-a380-e570907fd9b5 - Code Golf Stack Exchange

# [Ruby], <s>44</s> 40 bytes

<!-- language-all: lang-ruby -->

 ->a,b{a.to_s.chars.rotate(-b).join.to_i}

-4 from Dingus.

[Try it online!][TIO-kdvghjkk]

[Ruby]: https://www.ruby-lang.org/
[TIO-kdvghjkk]: https://tio.run/##KypNqvyfZvtf1y5RJ6k6Ua8kP75YLzkjsahYryi/JLEkVUM3SVMvKz8zDySVWfu/oLSkWCEt2tDIWMcwlguJZ4TCM0bhmSB4OmbG5gieAbIhBgbIhqBwUHlAEw1iubi4/gMA "Ruby – Try It Online"

# [Ruby], 19 bytes

<!-- language-all: lang-ruby -->

 ->a,b{a.rotate(-b)}

[Try it online!][TIO-l24m704q]

[Ruby]: https://www.ruby-lang.org/
[TIO-l24m704q]: https://tio.run/##RY5RCoMwEET/c4qFQlGIIWppoWBP0BtIkMTGNoVWceNHUc@eRqv1a98OszPbdurjqsxFF0lVL1lbW2l1EKlwdFajLUqJGrOc5HGS0ljQHyQrpCscZqDH9DQDX7ycL951/sHfcCHYSzb94LsHyCWzdYGsfMgWJz3Yn71gQgpKjLCDq0ELdQU3czcWCdn@Y1qWD@jBB4FPajqLUOXTIrYgDNmzNu@pxMBICHFf "Ruby – Try It Online"

taking a list of digits