def __init__(self, mem_str: str):
    self._amps = [Intcode(mem_str, name=f'Amp {(n + 1)}') for n in range(5)]
def __init__(self, mem_str: str):
    self._amps = [Intcode(mem_str, name=f'Amp {(n + 1)}') for n in range(5)]