Without the actual flowchart being available for reference, I can’t provide a definitive answer. However, you can analyze the flowchart by looking for the initial step where the algorithm receives inputs. Typically, input variables or parameters are labeled at the beginning of the flowchart.
If we assume that user authentication is part of the algorithm, the inputs might involve data such as "username and fingerprint." If the algorithm relates to a scanning process, then "scan and stop" or "attempt number and scan" could also be likely inputs.
If you can provide details or a description of the flowchart, I could help you deduce the answer more accurately. Otherwise, select the response that best fits your understanding of the algorithm's input based on the context you have.