09. Vowels Sum

#include <iostream>
#include <string>
using namespace std;

int main() {
    string word;
    getline(cin, word);

    int sum = 0;
    for (size_t i = 0; i < word.size(); i++)
    {
        int current_letter = word[i];
        if (current_letter == 'a')
        {
            sum += 1;
        }
        if (current_letter == 'e')
        {
            sum += 2;
        }
        if (current_letter == 'i')
        {
            sum += 3;
        }
        if (current_letter == 'o')
        {
            sum += 4;
        }
        if (current_letter == 'u')
        {
            sum += 5;
        }
    }
    cout << sum << endl;
}