Помогите решить задачу Smallfuck Interpreter

Задача взята с сайта codewars https://www.codewars.com/kata/58678d29dbca9a68d80000d7

Условия задачи.

Implement a custom Smallfuck interpreter interpreter() (interpreter in Haskell and F#, Interpreter in C#, custom_small_fuck:interpreter/2 in Erlang) which accepts the following arguments:

code - Required. The Smallfuck program to be executed, passed in as a string. May contain non-command characters. Your interpreter should simply ignore any non-command characters.
tape - Required. The initial state of the data storage (tape), passed in as a string. For example, if the string "00101100" is passed in then it should translate to something of this form within your interpreter: [0, 0, 1, 0, 1, 1, 0, 0]. You may assume that all input strings for tape will be non-empty and will only contain "0"s and "1"s.

Your interpreter should return the final state of the data storage (tape) as a string in the same format that it was passed in. For example, if the tape in your interpreter ends up being [1, 1, 1, 1, 1] then return the string "11111".

Из своих наработок даже нечего показать, так как совсем нет идей как это решить