Rewrite following code fragment using while loops :

for i in range(1, 16) :
  if i % 3 == 0 :      
     print (i)

Write a short program to print the following series :

1 4 7 10 ……….. 40.

Predict the output of the following code fragments:

count = 0         
while count < 10:
    print ("Hello")
    count += 1

Predict the output of the following code fragments:

x = 10
y = 0
while x > y: 
   print (x, y)
   x = x - 1
   y = y + 1