# Example variables

num$\_$dogs $=10$ # Replace with actual number of dogs

num$\_$cats $=5$ # Replace with actual number of cats

budget $=300$ # Replace with actual budget in dollars

# Calculate the total number of pets

total$\_$pets $=$ num$\_$dogs $+$ num$\_$cats

# Calculate per$-$pet budget

if total$\_$pets $==0$:

print$("$unavailable$")$

else:

per$\_$pet$\_$budget $=$ budget $/$ total$\_$pets

print$($per$\_$pet$\_$budget$)$