Question and Answer from L4-M1
word = input()
vowels = "AEIOU"
valid_last = "[{}]"
is_valid = (
len(word) >= 6 and
not word[0].isdigit() and
word[1] not in vowels and
word[-1] in valid_last
)
i = 2
num1 = ""
while i < len(word) and word[i].isdigit():
num1 += word[i]
i += 1
vow = ""
while i < len(word) and word[i] in vowels:
vow += word[i]
i += 1
num2 = ""
while i < len(word) and word[i].isdigit():
num2 += word[i]
i += 1
if is_valid and num1 and vow and num2 and i == len(word) - 1:
print("YES", int(num1) + int(num2))
else:
n1 = int(num1) if num1 else 0
n2 = int(num2) if num2 else 0
print("NO", n1 - n2)