Spoken Tutorials - Bash Assignment 
				Funded by the National Mission on Education through ICT
				       Indian Institute of Technology Bombay,
					       http://spoken-tutorial.org
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Arrays and functions

1) Write a program,
    a. Where a function adds all the elements in an array. 
    b. The function should display the sum of elements.
    c. Make 2 function calls with array elements- (1, 2, 3) and (4, 5, 6).