import argparse
import datetime
import hashlib
import io
import sys
def main():
parser = argparse.ArgumentParser()
parser.add_argument('--network', default='mainnet')
args = parser.parse_args()
if args.network == 'regtest':
from pycoin.symbols.xrt import network
elif args.network == 'testnet':
from pycoin.symbols.xtn import network
elif args.network == 'mainnet':
from pycoin.symbols.btc import network
else:
raise ValueError(f"unknown network: {args.network}")
for line in sys.stdin:
addr = line.strip()
script = network.parse.address(addr).script()
script_hash = hashlib.sha256(script).digest()
print(script_hash[::-1].hex())
if __name__ == '__main__':
main()