import java.util.Scanner;

public class main {
    public static void sub1(String[] args) {
    	Scanner input = new Scanner(System.in);
    	int n1, n2;
    	int ans;
    	String op;

    	System.out.println("What is the first number?");
    	n1 = input.nextInt();
    	input.nextLine();
    	System.out.println("What is the second number?");
    	n2 = input.nextInt();
    	input.nextLine();
    	System.out.println("What is the operation?");
    	op = input.nextLine();
    	switch (op){
    	case 1:
    		System.out.println(add(n1, n2));
    		break;


    	}




    }
  }