Python Program to Print All Vowels

Accept a string S as the input and print all the vowels in S as the output. If there is no vowel in S then the program must print -1 as the output.

Boundary Condition(s):
1 <= Length of S <= 100

Example Input/Output 1:
Input:
letuscrack

Output:
eua

Example Input/Output 2:
Input:
Sky

Output:
-1

inpStr = input().strip()
vowels = "aeiouAEIOU"
printed = False
for ch in inpStr:
    if ch in vowels:
        print(ch, end="")
        printed = True
if not printed:
    print("-1")