halit

#!/usr/bin/python
import socket

p = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
p.connect(("number.quals.seccon.jp", 31337))

while True:
	result = p.recv(2048)
	
	if "?" not in result:

halit

#define bitGet(v, n) ((v >> n) & 1)

int bitGet(int v, int n){
    switch(n - 1){
        case 7: v >>= 1;
        case 6: v >>= 1;
        case 5: v >>= 1;
        case 4: v >>= 1;
        case 3: v >>= 1;
        case 2: v >>= 1;

halit

/*
 * =====================================================================================
 *
 *       Filename:  cat.c
 *
 *    Description:  My cat program
 *
 *        Version:  1.0
 *        Created:  25-04-2013 13:58:45
 *       Compiler:  gcc