process.py

#!/usr/bin/env python3

import sys
from collections import defaultdict
import hashlib

def calc_hash(line, num):
    m = hashlib.sha256()
    m.update(line.encode('ascii'))
    m.update(b",")
    m.update(str(num).encode('ascii'))
    return m.hexdigest()

lines = defaultdict(int)

for line in sys.stdin:
    if not line.strip():
        continue

    lines[line] += 1
    
    h = calc_hash(line, lines[line])
    print(f"{line.rstrip()},{h}")