Majka was exploring multi-digit numbers in which odd and even digits alternate regularly. She called those starting with an odd digit "funny" and those starting with an even digit "cheerful." (For example, the number 32387 is funny, and the number 4529 is cheerful.)

Among three-digit numbers, determine whether there are more funny or cheerful numbers, and by how many.

(M. Dillingerová)

Hint. How many three-digit funny numbers start with 12? And how many start with one?
Both odd and even digits are five in number. For comic numbers, any of the odd digits $1,3,5,7,9$ can be in the first position. For each of these five possibilities, any of the even digits $0,2,4,6,8$ can be in the second position, which gives $5 \cdot 5=25$ possibilities. For each of these 25 possibilities, any of the odd digits can be in the third position, which gives $25 \cdot 5=125$ possibilities. There are 125 three-digit comic numbers.

Counting three-digit happy numbers is similar, except that 0 cannot be in the first position. Therefore, there are $4 \cdot 5 \cdot 5=100$ three-digit happy numbers.

There are 25 more three-digit comic numbers than happy ones.