https://github.com/coresresearch/hng-model/blob/7ca6f4f2858e6a2c48eece501b9201b9ca1c805f/Growth_function.py#L48-L48
https://github.com/coresresearch/hng-model/blob/7ca6f4f2858e6a2c48eece501b9201b9ca1c805f/Growth_function.py#L48-L48