The OR Gate
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  Difficulty: Basic   Marks: 1

Construct an N input OR Gate. An OR Gate returns 0 if all its inputs are 0, otherwise 1.

Input:

The first line of input takes the number of test cases, T. Then T test cases follow.

Each test case consists of 2 lines.

The first line of each test case takes the number of inputs to the OR Gate, N. The second line of each test case takes N space separated integers denoting the inputs to the OR Gate. Note that the inputs can be either 1's or 0's.

Output:

Print the output of the N input OR Gate for each test case on a new line.

Constraints:

1<=T<=100

1<=N<=100

Example:

Input:

3
2
1 1
3
0 0 0
4
1 1 1 0

Output:

1
0
1

** For More Input/Output Examples Use 'Expected Output' option **

Contributor: Arpan Kundu
Author: akundusaltlake


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