for i in range(100,300):
	for j in range(2,i+1):
		if i % j == 0:
			break
		else:
			print(i)



10 ==> 1, 2, 5, 10
20 ==> 1,2,4,5,10,20


================================================
DATA STRUCTURES
=================
FACEBOOK:
	REGISTARTION:
		NAME : STRING
		USER NAME: STRING
		MOBILE : INTEGER
		DOB : STRING
		AGE : INTEGER
		GENDER : STRING
		ADDRESS : STRING
		MAIL : STRING

			REGISTER

OUR COMPUTER ===> FACEBOOK SERVER
			IN THE FORMAT OF THE TABLE

STRING DATA STRUCTURE
=======================
WHAT IS STRING
===============
A GROUP/COLLECTION OF CHARACTERS WHICH ENCLOSED WITH SINGLE QUOTES OR DOUBLE QUOTES.
EX: 'PYTHON' , "PROGRAMMING"
==> The Characters are of any type:
	might be with: alphabets (any case), digits (0 to 9) and special characters etc.

STRING DEFINITION
================
==> two ways to define the strings:
	1) compile time definition ==> variable can be executed with fixed data in the entire program ==> with assignment operator
	2) run time definition ==> variable can be accept different values for every execution time of the program.
		input(), str(input())

# string definition

# compile time definition

str_data = 'python'
str1_data = "Programming"
str2_data = "123455"
str3_data = "@#$%"
str4_data = 'python@12343'

# run time definition of the string
str5_data = input("Enter a string data:")

print(type(str_data),type(str1_data),type(str2_data),type(str3_data),type(str4_data))
print(str_data,str1_data,str2_data,str3_data,str4_data)

print(type(str5_data))
print(str5_data)

==================================================

MULTI LINE STRING
=================
==> to define the multi-line strings:
	triple quotes are used.
Ex:
'''Python is High-level,
General-purpose,
Object Oriented 
Programming language.'''

"""Python is High-level,
General-purpose,
Object Oriented 
Programming language."""

==> In between multi-line string,
	we can allowed to use: 
		single quotes
		double quotes.

Ex: 
"""Python's Features are:
'High Level'
"Objecte Orienetd"
"""

a = ''' Python is High-level,
general purpose,
object oriented 
programming langauge '''

b = """ Python is High-level,
general purpose,
object oriented 
programming langauge """

c = """Python's Features are:
1) High Level Programming langauge.
2) 'General Purpose Programming Langauge.'
3) "Object Oriented Programming language."
"""

print(type(a),type(b))

print(a)
print(b)

print(type(c))
print(c)

Note:
====
1) adding of double quotes in between double quotes ==> not possible.
2) adding of single quotes in between single quotes ==> not possible
==> to add:
	\start_quotes ........ \end_quotes

d = 'Python\'s'
e = 'Python is \'High level programming language\''
f = "python is 'High Level Programming language.'"
g = 'Python is "High level" language'

print(d)
print(e)
print(f)
print(g)

==========================================================


STRING DATA ACCESSING
======================
==> possible in two ways:
	1) Indexing ==> accessing with individual characters
	2) Slicing ==> accessing the part of the string with group of characters 
[] ==> slice operator

1) Indexing
=========
==> with two ways:
	1) using positive index
		==> to access the string charcters from left to right
		==> called as "forward accessing"
		==> default start value : 0
		==> end with: length of string - 1
		==> Range of positive indexing ==> 0 to length_string - 1
		==> if the index value from out of range ==> error
	2) using negative index
		==> to access the string characters from right to left
		==> called as "reverse accessing"
		==> default start value: -1
		==> default end value : -length_string
		==> range of negative indexing ==> -1 to -str_length 
	Syntax:
		str_data[index value]

str_data = input("Enter a string:")

print("The Size of the string = ",len(str_data))

# positive indexing ==> forward access

print(str_data[0])
print(str_data[1])
print(str_data[2])
print(str_data[3])
print(str_data[4])
print(str_data[5])

print()

# negative indexing ==> reverse access

print(str_data[-1])
print(str_data[-2])
print(str_data[-3])
print(str_data[-4])
print(str_data[-5])
print(str_data[-6])

2) Slicing
=======
Syntax:
	str_data[start:stop] ==> slicing start at "start" value and end with "stop-1" value

 	str_data[start:stop:step] ==> slicing start with "start" value and end with "stop-1" value with the difference of "step"

	str_data[:stop] ==> by default, slicing can start with first character and end with "stop-1" value

	str_data[start:] ==> slciing can start with "start" value and end with "last" by default

	str_data[::] ==> start with first character and end with last

	str_data[::step] ==> start with first character and end with last with difference of step value.

str_data = "Python programming"

print(str_data[0:6])
print(str_data[-1:-10:-1])
print(str_data[-10:-1])

print(str_data[0:len(str_data)+1 : 3])
print(str_data[0::3])
print(str_data[::3])

print(str_data[:-1:1])

print(str_data[::])
print(str_data[::-1])
print(str_data[::4])

STRING OPERATIONS
==================
1) FINDING THE LENGTH OF THE STRING
==================================
len()
====
	==> used to find the total number of characters of the given string
	Syntax:
		len(str_data)

str_data = input("Enter a string value:")

print(type(str_data))

print("The length of the string = ",len(str_data))


PRACTICE