Background

Description

Given an array of ints, return a new array length 2 containing the first and last elements from the original array. The original array will be length 1 or more.

Format

Input

Output

Samples

[1 2 3]

[1, 3]

[1 2 3 4]

[1, 4]

[7 4 6 2]

[7, 2]

Limitation

1s, 1024KiB for each test case.