
题比较简单 像签到题

将这些数字转为字符串即可
s = [83, 69, 67, 67, 79, 78, 123, 87, 101, 108, 99, 111, 109, 101, 32,
116, 111, 32, 116, 104, 101, 32, 83, 69, 67, 67, 79, 78, 32, 50,
48, 49, 52, 32, 67, 84, 70, 33, 125, 0]
flag = ''
for i in s:
flag += chr(i)
print(flag)
#SECCON{Welcome to the SECCON 2014 CTF!}