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Competitions

# Indexes of letter

Print all indexes of the small Latin letter a in the given string, assuming that the first character has index 0.

#### Input

One line of the text, that consists of Latin letters, separators and spaces only.

#### Output

Print all the indexes of the letter a in one line. If letter a is not found in the string, then print -1.

Time limit 1 second
Memory limit 128 MiB
Input example #1
abrakadabra

Output example #1
0 3 5 7 10

Input example #2
Hello, world!

Output example #2
-1

Author Matviychuk Sergiy Volodymyrovych
Source "ABC programming"