#!/usr/bin/env python3
"""
This is a tiny script I can use to preview secrets on the command line.

It prints the beginning and end of the secret, but not the whole thing --
this avoids printing secrets in plaintext.

    $ echo "$FLICKR_API_KEY" | peek
    ae8…f3a

"""

import sys


if __name__ == '__main__':
    secret = sys.stdin.read().strip()
    
    if not secret:
        print("<empty>")
    elif len(secret) < 4:
        print(f"{secret[0]}…")
    elif len(secret) < 12:
        print(f"{secret[:3]}…")
    else:
        print(f"{secret[:3]}…{secret[-3:]}")