```pythonimport loggingfrom scapy.all import rdpcaplogging.getLogger("scapy.runtime").setLevel(logging.ERROR)
PCAP = 'hidden_wisdom.pcap'
def read_pkts():    return rdpcap(PCAP)
def ret_flag(pkts):    prev = 0    msg = ''    flag = ''
    for pkt in pkts:        diff = pkt.time-prev        if ((diff > .28) and (diff < .32)):            msg += '1'        elif ((diff > .08) and (diff < .12)):            msg += '0'        prev = pkt.time
        if len(msg) == 8:            flag += chr(int(msg, 2))            msg = ''
    return flag
pkts = read_pkts()print("{Solution: uscg{%s}" % ret_flag(pkts))```