diff --git a/napi b/napi
index 319dcd5..1d88aee 100755
--- a/napi
+++ b/napi
@@ -22,23 +22,6 @@ import xml.etree.ElementTree as ET
 
 import base64
 
-def f(z):
-	idx = [ 0xe, 0x3,  0x6, 0x8, 0x2 ]
-	mul = [   2,   2,    5,   4,   3 ]
-	add = [   0, 0xd, 0x10, 0xb, 0x5 ]
-
-	b = []
-	for i in xrange(len(idx)):
-		a = add[i]
-		m = mul[i]
-		i = idx[i]
-
-		t = a + int(z[i], 16)
-		v = int(z[t:t+2], 16)
-		b.append( ("%x" % (v*m))[-1] )
-
-	return ''.join(b)
-
 if(len(sys.argv)==1):
 	print "wy*dalaj na stadion po film"
 	sys.exit(2)