Could somebody explain why does the result look like this, i knew the mistake of this code,but i dont know why it print like dis

Question

money = 5000

print("money: ",money)
b = str(input("input: "))
print(b)
print("-coffee 2000\n-gundam 10000 \n")

if b=="coffee" or "Coffee":
money-=2000
if money<0:
print("you dont have enough money")
else:
print("your money: ",money)

elif b=="gundam" or "Gundam":
money-=10000
if money<0:
print("you dont have enough money")
else:
print("your money: ",money)
else:
print("error")

Result:

money: 5000
input: gundam(i tried to input the other string)
-coffee 2000
-gundam 10000

your money: 3000

Answer 1

I am not sure , but at that :
if b=='coffee' or "Coffee"
Should be:
If b=="coffee" or b=="Coffee"
Same at that elif.

Answer 2

Yeah,i knew but why does the result look like that