Single File Programming Question

Given an unsorted array Arr of size $N$ of positive integers. One number $\text{'}A\text{'}$ from set $\{1,2,$dots,$N\}$ is missing and one number $\text{'}B\text{'}$ occurs twice in array. Find these two numbers.

Input format :

The first line of input consists of $N$ integers.

The Second line of input consists $N$ number of Space separated integers.

Output format :

The output displays a integer of missing number and repeated number separated by line.

Refer to the sample input and output format for formatting specifications.