OR Gate Evaluation

You are given an integer N and a sequence of N binary digits (0 or 1). Your task is to compute the result of applying the bitwise OR operation over all the bits.

Mathematically, if the bits are \(a_1, a_2, \ldots, a_N\), you need to compute:

If at least one of the bits is 1, the result is 1; otherwise, it is 0.

Input is given via stdin and output should be produced on stdout.

inputFormat

The first line of input contains an integer N representing the number of bits.

The second line contains N space-separated integers, each being either 0 or 1.

outputFormat

Print a single integer: the result of the bitwise OR operation on the N bits.

5
0 0 0 1 0

1