ICP1

Answer 1. Python 2 vs Python 3

1. In python 2 print is considered as a statement rather than function In Python 3 print is considered as a function which uses parenthesis
2. Integer Division: In python 2,it returns an integer. So, If we take 7/2 it will give 3. To get exact answer we need to use 7.0/2.0. In python 3, integer division can give us a float answer. For example: 7/2 will give 3.5.
3. Input() Function: In Python 2, input() function can be used to read as strings if they are inside quotation marks else read as a numbers only. In python3, input() function read the input as a string.
4. Unicode Support: To store as Unicode, in python2 we need to use a label with "u".In python 3 it store string as Unicode in default only.
5. xrange() : In python 2 we use xrange() function to iterate. In Python 3, range(): Here, we use range() function to iterate.
6. Exception handling: In Python2 ,exception arguments can be enclosed in notations. Here, in Python3 exception arguments can be enclosed with parenthesis.

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ANSWER2. To Count the number of digits and letters
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To print the string in reverse form.
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Arithmetic operation
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