I'm making a simple calculator, but I've run into a problem where a string input is skipped. Here is my code:

import java.util.Scanner;

public class Calculator {
    
    public static void main(String[] args) {

        Scanner input = new Scanner(System.in);

        System.out.println("Calculator\n");

        while (true) {

            System.out.print("Number: ");
            float num1 = input.nextFloat();

            System.out.print("Operator: ");
            String optr = input.nextLine();

            System.out.print("Number: ");
            float num2 = input.nextFloat();


            System.out.println(num1 + num2);

        }

    }

}

I have tried doing \n but I don't know what else I should really do as I don't know what the problem is. I know input is never closed, but I have tried closing it. It has no affect and I don't want to add it right now as I am making the base system.