Program Call Flow Based on User Role

This problem requires you to determine the program call flow sequence based on a given user role. The valid roles are Customer, LogisticsManager, and CustomerServiceRep. For a given input role, if it is valid, output the corresponding sequence of function calls; otherwise, output an empty sequence.

The call sequences are defined as follows:

$$\begin{aligned} \text{Customer}: &\quad [\text{login},\text{view_recommendations},\text{track_order_status},\text{logout}]\\ \text{LogisticsManager}: &\quad [\text{login}, \text{update_order_status}, \text{logout}]\\ \text{CustomerServiceRep}: &\quad [\text{login}, \text{assist_customers}, \text{logout}] \end{aligned}$$

inputFormat

A single line from stdin containing a string that represents the user role.

outputFormat

A single line to stdout containing the corresponding call flow sequence with function names separated by a single space. If the role is invalid, output an empty line.## sample

Customer

login view_recommendations track_order_status logout