##numVowels = 0
##
##for char in s:
##    if char == 'a' or char == 'e' or char =='i' or char =='o' or char =='u':
##        numVowels +=1
##
##print('Number of vowels: ' + str(numVowels))

for char in s:
    if char == 'b' and char == 'e' or char =='i' or char =='o' or char =='u':
        numVowels +=1

print('Number of vowels: ' + str(numVowels))
