remove utf-8

grading.py

@@ -38,7 +38,7 @@ if taskno == 4 or taskno == -1:
 	print "=========================== Task 4"
 	task4_result = task4(logsRDD)
 	for x in task4_result.takeOrdered(100):
-		print x.encode('utf-8')
+		print x
 
 if taskno == 5 or taskno == -1:
 	#### Task 5