Problem C
Dobra
Lea runs into a lot of words in her life. A lot of them she finds unpleasant. To compensate for that she started making up pleasant words. Lea makes up new words by writing a nice looking string of characters on a piece of paper. She than erases a few of the most nasty looking characters and replaces them with underscores ‘_’. After that she tries to replace the underscores with more acceptable characters trying to form a pleasant word.
Lea considers words pleasant if they do not contain $3$ sequential vowels, $3$ sequential consonants and contain at least one letter ‘L’.
In Croatian, the vowels are the letters A, E, I, O, and U only. All other letters are consonants.
Input
The first and only line of input contains a string of characters, at most $100$. The string contains only of uppercase English letters and ‘_’ characters. There will be at most $10$ ‘_’ characters.
Output
The first and only line of output should contain a single integer – the total number of pleasant words that can be formed by substituting underscores with uppercase letters of the English alphabet.
| Sample Input 1 | Sample Output 1 |
|---|---|
L_V |
5 |
| Sample Input 2 | Sample Output 2 |
|---|---|
V__K |
10 |
| Sample Input 3 | Sample Output 3 |
|---|---|
JA_BU_K_A |
485 |