Indexes of letter#8982

Indexes of letter

1 second
128 megabytes
Very easy

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

Input

One line of the text, that consists of Latin letters, punctuation marks 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 .

Examples

Example 1

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Example 2

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