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import socket
import sys

server_address = '', int(sys.argv[1])  # Usage: server.py <port>

server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.bind(server_address)
server.listen(0)
print('Wait for the connection')

while True:
    connection, connection_address = server.accept()
    print('Connected')

    connection.close()
    print('Disconnected')

import socket
import sys

server_address = sys.argv[1], int(sys.argv[2])  # Usage: client.py <host> <port>

client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
client.connect(server_address)
print('Connected')

client.close()
print('Disconnected')