I want the user to write like this picture

[abooood123147]

How do I write a programming syntax for me to (readline) kotlin in arithmetic operations For example: I want to collect but by writing (readline)
I want to write the arithmetic formula like this:- (1 + 5= or 3-7=) I want to write a code that gives the user the freedom to calculate by writing the arithmetic operations in the Kotlin language

[powercomp750]

For that you'll need to readout entire line, sort out arithmetic symbols, Regex expressions to match your format.

Here is the very simple code for calculating 1 + 5 or 3 - 7

fun main() {
    while (true) {
        println("Enter an arithmetic expression in the format (a + b=):")
        val input = readLine()

        // Check if the input ends with '='
        if (input != null && input.trim().endsWith("=")) {
            // Remove the '=' and whitespace
            val expression = input.trim().removeSuffix("=")

            try {
                // Use a regular expression to match the format (a + b)
                val regex = """\((\d+)\s*([\+\-\*/])\s*(\d+)\)""".toRegex()
                val matchResult = regex.matchEntire(expression)

                if (matchResult != null) {
                    val (operand1, operator, operand2) = matchResult.destructured
                    val num1 = operand1.toInt()
                    val num2 = operand2.toInt()

                    val result = when (operator) {
                        "+" -> num1 + num2
                        "-" -> num1 - num2
                        "*" -> num1 * num2
                        "/" -> if (num2 != 0) num1 / num2 else throw ArithmeticException("Division by zero")
                        else -> throw IllegalArgumentException("Unsupported operator")
                    }
                    println("Result: $result")
                } else {
                    println("Invalid format. Please use the format (a + b=)")
                }
            } catch (e: Exception) {
                println("Error: ${e.message}")
            }
        } else {
            println("Invalid input. Please make sure your input ends with '='.")
        }

        println("Do you want to try again? (yes/no)")
        val continueInput = readLine()?.trim()?.lowercase()
        if (continueInput != "yes") {
            println("EXIT")
            break
        }
    }
}

I hope this one works.