What the solve? Arrays

* Input Format An integer denotes the number of items. 2. A character space-separated values a1. a 2.... an, where ai is the id of each item of the i-th place - Output Format 1 Number of items remains on the shel 2. Number of items removed from the shell Sample #1 Input 8 Output 3 Items remain on the shelf 5 Items emoved from the shelf Sample #2 * Input Format An integer denotes the number of items. 2. A character space-separated values a1. a 2.... an, where ai is the id of each item of the i-th place - Output Format 1 Number of items remains on the shel 2. Number of items removed from the shell Sample #1 Input 8 Output 3 Items remain on the shelf 5 Items emoved from the shelf Sample #2