I just need the diagram for the following:

Design a finite state machine (FSM) for a soda machine that takes both nickels and dimes. Your FSM should take 2 1-bit inputs: n-1 means a nickel (5 cents) was put in the machine during the current time step (n-0 means no nickel this time step); similarly d-1 when a dime (10 cents) is put in. A nickel and dime can be put in simultaneously (there is a slot for each on the front of the machine). When a balance of 20 cents is reached, a soda is dispensed (output s 1) and the balance is reduced by 20 cents s-? start