diff --git a/doc/2013-02-TF5/classes.py b/doc/2013-02-TF5/classes.py
new file mode 100755
index 0000000..1692f59
--- /dev/null
+++ b/doc/2013-02-TF5/classes.py
@@ -0,0 +1,63 @@
+#! /usr/bin/python3
+
+import sys
+
+limits = {
+	"net": 100,
+	"mal": 60,
+	"hst": 60,
+	"icc": 40,
+	"nil": 9000,
+	":-(": 9000,
+}
+
+# Read in allowed substring list
+allowed = []
+for line in open("approved.txt"):
+	allowed.append(line.strip())
+
+# Read in registration data
+registrants = []
+regs = {}
+for line in open("reg.txt"):
+	line = line.strip('\n')
+	ok = False
+	for a in allowed:
+		if a in line:
+			ok = True
+			break
+	name, email, org, c1, c2, _ = line.split('\t')
+	if not ok:
+		c1 = c2 = "nil"
+
+	if email not in registrants:
+		registrants.append(email)
+	regs[email] = (name, org, c1, c2)
+
+# Divvy out classes
+which = {}
+counts = [0, 0, 0]
+for email in registrants:
+	r = regs.get(email)
+	name, org, c1, c2 = regs[email]
+	c = [c1, c2, ":-("]
+
+	for i in range(3):
+		w = c[i]
+		if limits[w] > 0:
+			which[email] = i
+			limits[w] -= 1
+			counts[i] += 1
+			break
+	
+	try:
+		oldreg = open(email).read()
+	except:
+		oldreg = None
+		
+	if oldreg != w:
+		print(w, email)
+		open(email, "w").write(w)
+
+print("%d got 1st choice, %d got 2nd choice, %d got screwed" %
+	(counts[0], counts[1], counts[2]))