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Understanding about State of functional programming

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	`1`	`+`
	`2`	`+`
	`3`	`+# Have you heard about State in Programming Language?`
	`4`	`+`
	`5`	`+# Very frequentlt this terminology is been used in Entity or Object Communication.`
	`6`	`+`
	`7`	`+`
	`8`	`+# Let's say we have to model a bank account with support for deposit and withdraw operations.`
	`9`	`+# One way to do that is by using global state`
	`10`	`+`
	`11`	`+balance = 0 #balance variable is global of the program, if this below snippet is inside the class, we can call as class attribute.`
	`12`	`+`
	`13`	`+def deposit(amount):`
	`14`	`+ global balance`
	`15`	`+ balance += amount`
	`16`	`+ return balance`
	`17`	`+`
	`18`	`+def withdraw(amount):`
	`19`	`+ global balance`
	`20`	`+ balance -= amount`
	`21`	`+ return balance`
	`22`	`+`
	`23`	`+sanjay = deposit(100)`
	`24`	`+print(sanjay)`
	`25`	`+`
	`26`	`+# The above example is good enough only if we want to have just a single account.`
	`27`	`+`
	`28`	`+# ****Things start getting complicated if want to model multiple accounts.****`
	`29`	`+`

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