Arithmetic Expression Tokenizer

You are given a string representing an arithmetic expression. The expression contains multi-digit integers, the four basic arithmetic operators +, -, *, /, and parentheses ( and ). Your task is to tokenize this expression using a regular expression or a custom parsing method.

The tokens should consist of integers or single-character operators/parentheses, and the output should list these tokens in the order they appear in the original expression.

For example, the arithmetic expression

\(3+(6*5-8)/4\)

should be tokenized into:

3, +, (, 6, *, 5, -, 8, ), /, 4

When printing the result, output the tokens joined by a single space.

inputFormat

The input consists of a single line which is a string representing an arithmetic expression. The expression may contain digits, the operators +, -, *, /, and the parentheses ( and ). There might be no spaces between characters.

outputFormat

Output the list of tokens extracted from the expression separated by a single space. Each token should be exactly as it appears in the expression (a number, an operator, or a parenthesis).

## sample

3+2

3 + 2