Matching one of sub expressions

'|'allows you to combine multiple expressions.

Ex:

(fir|la|be)st match strings first, last, best

Run the harness program.

Sample Output

Enter Regular Expression

(fir|la|be)st

Enter the string

I am always last

I found the text last starting at index 12 Ending at index 16

Enter the string

I love best among best

I found the text best starting at index 7 Ending at index 11

I found the text best starting at index 18 Ending at index 22

Enter the string

first come first serve

I found the text first starting at index 0 Ending at index 5

I found the text first starting at index 11 Ending at index 16

Enter the string

first come last serve

I found the text first starting at index 0 Ending at index 5

I found the text last starting at index 11 Ending at index 15

Note:

Use this program to run above sample

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