# ========================================================================

# leaf frog coding interview question

# =========================================================================

def logic(inputs, inputs_length):

maximum = int(max(inputs))

missinig = []

for i in range(maximum):

if i not in inputs:

missinig.append(i)

return missinig

input_length = int(input())

inputs = []

for x in range(input_length):

inputs.append(int(input()))

print(logic(inputs, input_length))

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def logic(my_input):

result = []

res = ""

words = my_input.split(" ")

for word in words:

firstchar = word[0]

newword = word[1:] + firstchar + "arg"

result.append(newword)

for i in result:

res = res + i + ""

return res

my_input = input()

print(logic(my_input))

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def logic(my_input):

result = ""

vowels = ["a", "e", "i", "o", "u"]

string = my_input.casefold()

count = {}.fromkeys(vowels, 0)

for character in string:

if character in count:

count[character] += 1

for keys in count:

value = count[keys]

if value != 0:

result = result + str(value) + keys

return result

my_input = input()

print(logic(my_input))

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# end leaf frog coding interview question

#=========================================================================