```import socket
s = socket.socket()
port = 13372host = 'crypto.ctf.umbccd.io'
s.connect((host, port))
s.send(b'flg')flag=(s.recv(1024))#print(flag)s.send(b'enc:test')r=(s.recv(1024))#print(r)iv=r[0:16]#print(iv)s.send(b'dec:'+iv+flag)r=(s.recv(1024))print(r)s.close()```