Scoped Multiplier Expansion

Expand a nested expression where each scope starts with a multiplier. The format is '(multiplier item1 item2 ...)', where an item can be an integer or another nested scope. When an integer is inside a scope, it is multiplied by the scope's multiplier and all parent multipliers. Output the flattened list of expanded integers. Input is a single string of nested parentheses and integers. Example: (2 5 (3 1 2) 4) 1. 5 is in scope with multiplier 2 -> 10 2. 1 is in nested scope (3) inside (2) -> 1 * 3 * 2 = 6 3. 2 is in nested scope (3) inside (2) -> 2 * 3 * 2 = 12 4. 4 is in scope with multiplier 2 -> 8 Output: 10 6 12 8