Elements After Last Four

Background

Congcong is currently learning about array operations. He encountered an interesting problem that requires extracting specific elements from an integer array.

Problem Description

Given a non-empty array of integers, return a new array containing the elements from the original array that come after the last $4$ in the original array. The original array will contain at least one $4$. Note that it is valid in Java to create an array of length $0$.

Input Format

Input is given from standard input in the following format.

An array of integers, with elements separated by spaces and enclosed in square brackets []. For example: [2 4 1 2]

Output Format

Output is printed to standard output in the following format.

A new array of integers containing all elements after the last $4$ in the original array. Elements are separated by a comma and space , and enclosed in square brackets []. If $4$ is the last element, an empty array [] should be returned.

Sample

[2 4 1 2]

[1, 2]

[4 1 4 2]

[2]

[4 4 1 2 3]

[1, 2, 3]

Sample Explanation

Sample $1$: After the last $4$ in the array, the elements are $1$ and $2$. Sample $2$: After the last $4$ in the array, the element is $2$. Sample $3$: After the last $4$ in the array, the elements are $1$, $2$, and $3$.

Constraints

Time limit: $1$ second, Memory limit: $1024$ KiB for each test case.