class queue:
s=0
def insert(self):
a=raw_input(“Enter any letter:”)
queue.s.append(a)
def display (self):
l=len(queue.s)
print “QUEUE CONTENTS”
for i in range(o,l):
print queue. s[i]
a=queue()
n= input(“Enter no. of letters”)
for i in range(n): a.insert()
ch = raw_input(“Do you want to insert more letters”)
if ch==‘y’:
a.insert()
a.display()