import java.lang.*;
import java.io.*;
import java.util.*;

//Random search canon bombardment
public class Canon1 {

    public static void main(String[] args){

	Random rand = new Random(0); //Set random seed
	int counter = 0;             //Initialize counter

	System.out.println("Target at 500m");
	System.out.println("Angle, Speed, Distance");

	while(true){ //Main Loop

	    counter++;

	    double angle = rand.nextDouble()*(Math.PI/2.0);
	    double speed = rand.nextDouble()*(100);
	    double distance = (speed * speed * Math.sin( angle * 2.0 ))/9.8 ;

	    System.out.println(angle+", "+speed+", "+distance);

	    if(distance > 490 && distance < 510) break; //if hit then exit loop

	}//end Main Loop

	System.out.println(counter+" turns to hit");

    }//end main()

}//end class Canon1