# Arup Guha
# 11/9/2025
# Solution to JK Contest #1 Problem: Count the Vowels

# Get input.
s = input().strip()

# Just put them all here.
VOWELS= "AEIOUaeiou"

# Store answer here.
cnt = 0

# Loop through all letters.
for x in s:

    # Python makes this easy,
    if x in VOWELS:
        cnt += 1

# Ta da!
print(cnt)