silver_beard dharshan

## output.txt
1
  Enter a String
  bengaluru
  Enter a Sub String
  uru
  => Present

2
  Enter a String
  bengaluru

## output.txt
#### OUTPUT
1
  Enter comma seperated integers
  1,2,3,4,6,7,8
  Enter pair sum
  10
  ((2, 8), (3, 7), (4, 6), (6, 4), (7, 3), (8, 2))

2
  Enter comma seperated integers

## Output
##### OUTPUT
1
  Enter comma seperated integers
  1,2,3,4,6,7,8
  Enter pair sum
  10
  [[2, 8], [3, 7], [4, 6]]


2

## reverse_if_4.rb
def string_rev_if_4(input)
  return input.reverse if input.length < 4
  input
end

string_rev_if_4("he") # "eh"
string_rev_if_4("hel") # "leh"
string_rev_if_4("hell") # "hell"
	1
	Enter a String
	bengaluru
	Enter a Sub String
	uru
	=> Present

	2
	Enter a String
	bengaluru
	#### OUTPUT
	1
	Enter comma seperated integers
	1,2,3,4,6,7,8
	Enter pair sum
	10
	((2, 8), (3, 7), (4, 6), (6, 4), (7, 3), (8, 2))

	2
	Enter comma seperated integers
	##### OUTPUT
	1
	Enter comma seperated integers
	1,2,3,4,6,7,8
	Enter pair sum
	10
	[[2, 8], [3, 7], [4, 6]]


	2
	def string_rev_if_4(input)
	return input.reverse if input.length < 4
	input
	end

	string_rev_if_4("he") # "eh"
	string_rev_if_4("hel") # "leh"
	string_rev_if_4("hell") # "hell"