What is the output of the following lines of code?

if int('zero') == 0 :       
   print ("zero")            
elif str(0) == 'zero' :          
   print (0)                  
elif str(0) == '0' :         
   print (str(0))             
else:                         
   print ("none of the above")

Find the errors in the code given below and correct the code:

if n == 0
   print ("zero") 
elif : n == 1     
   print ("one")  
elif             
   n == 2:        
   print ("two") 
else n == 3:      
   print ("three")

How are following two code fragments different from one another? Also, predict the output of the following code fragments :

(a)

n = int(input( "Enter an integer:" ))
if n > 0 :
    for a in range(1, n + n ) :
        print (a / (n/2))
    else :
        print ("Now quiting")

(b)

n = int(input("Enter an integer:"))
if n > 0 :
    for a in range(1, n + n) :
        print (a / (n/2))
else :
    print ("Now quiting")

Rewrite the following code fragment using for loop:

i = 100
while (i > 0) :
    print (i)
    i -= 3