Not able to understand the test case of this program

ARRAYS-SUM OF TWO ARRAYS
Take as input N, the size of array. Take N more inputs and store that in an array. Take as input M, the size of second array and take M more inputs and store that in second array. Write a function that returns the sum of two arrays. Print the value returned.

Input Format:
Constraints:
Length of Array should be between 1 and 1000.

Output Format
Sample Input
4
1 0 2 9
5
3 4 5 6 7
Sample Output
3, 5, 5, 9, 6, END

@arjundkl hey arjun see this discuss
Sum of arrays_array