import java.util.*;

class Main
{
    private int accountNumber;
    private float accountBalance;
    
    public int getAccountNumber(){
        return accountNumber;
    }
    public void setAccountNumber(int accountNumber){
        this.accountNumber=accountNumber;
    }
    
    public int getAccountBalance(){
        return accountBalance;
    }
    public void setAccountBalance(int accountBalance){
        this.accountBalance=accountBalance;
    }
    public void account(){
        if(accountNumber>= -500 || accountNumber<= 500 || accountBalance>= -1000.00 || accountBalance<= 1000.00)
        {
         System.out.println("true");
        }
        else{
         System.out.println("false");   
        }  
    }
    public static void main(String[] args){
        Scanner sc=new Scanner(System.in);
        if(!sc.hasNextInt()){
            System.out.println("Invalid input");
        }
        int accountNumber=sc.nextInt();
        if(!sc.hasNextFloat()){
            System.out.println("Invalid input");
        }
        float accountBalance=sc.nextFloat();
        
        Main obj=new Main();
        obj.setaccountNumber(accountNumber);
        obj.setaccountBalance(accountBalance);
        obj.account();
    }
}