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Given a string and a symbol, insert the symbol between every letter as shown in the examples.

Sample Code:

function myFunc(str,inp) {
// Enter your logic here...
}

Examples:

Input: 'Hello World', '-'
Output: 'H-e-l-l-o-W-o-r-l-d'
Explanation: Every letter has been separated with '-'.

Input: 'Javascript',' '
Output: 'J a v a s c r i p t'
Explanation: Every letter has been separated with ' '.

Test Case	Input	Expected Output
Test Case 1	'Hello World','-'	'H-e-l-l-o-W-o-r-l-d'
Test Case 2	'Javascript',' '	'J a v a s c r i p t'

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