P27152: The value of the letters

#include <iostream>
using namespace std;


int main() {
    int count = 0;
    char c;
    while (cin >> c) {
        if (c == 'a' || c == 'e') count += 1;
        else if (c == 'o' || c == 's') count += 2;
        else if (c == 'd' || c == 'i' || c == 'n' || c == 'r') count += 3;
        else if (c == 'c' || c == 'l' || c == 't' || c == 'u') count += 4;
        else if (c == 'm' || c == 'p') count += 5;
        else if (c == 'k' || c == 'w') count += 7;
        else count += 6;
    }
    cout << count << endl;
}