text = input()
final_score = 0

for i in range(0, len(text)):
    if text[i] == "a":
        final_score += 1
    if text[i] == "e":
        final_score += 2
    if text[i] == "i":
        final_score += 3
    if text[i] == "o":
        final_score += 4
    if text [i] == "u":
        final_score += 5

print(final_score)