class Ship {
    Position p;
    int size;
    boolean o; //true if ship is horizontal
    boolean[] destroyed;
    int totalDestroyed;

    public boolean isDestroyed() {
      return totalDestroyed == size;
    }

    public boolean destroyOneCoordinate(Position guess) {
      System.out.println(guess.r + "," + guess.c);
      if (o) {
        if (guess.r != p.r) {
          return false;
        }
        if (guess.c - p.c > size) {
          return false;
        }
        if (destroyed[guess.c - p.c]) {
          return false;
        }
        destroyed[guess.c - p.c] = true;
        totalDestroyed++;
        System.out.println("destroyed" + guess.r + "," + guess.c);
        return true;
      }
      else {
        if (guess.c != p.c) {
          return false;
        }
        if (guess.r - p.r > size) {
          return false;
        }
        if (destroyed[guess.r - p.r]) {
          return false;
        }
        System.out.println("destroyed" + guess.r + "," + guess.c);
        destroyed[guess.c - p.c] = true;
        totalDestroyed++;
        return true;

      }
    }

    Ship(Position p, int size, boolean o) {
      this.p = p;
      this.o = o;
      this.size = size;
      destroyed = new boolean[size];
      totalDestroyed = 0;
    }
  }

  class Position {
    int r;
    int c;
    Position(int r, int c) {
      /*if (r <0 || c <0 || r > 9 || c >9) {
        throw new Exception("position not defined");
      }*/
      this.r = r;
      this.c = c;
    }
  }



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

    Ship a = new Ship(new Position(0,0), 2, true);
    Ship b = new Ship(new Position(1,0), 2, true);
    int turn = 0; // tell me who's turn
    Position[] guesses = new Position[5];
    guesses[0] =  new Position(0, 0);
    guesses[1] =  new Position(0, 0);
    guesses[2] =  new Position(0, 1);
    guesses[3] =  new Position(0, 1);
    guesses[4] =  new Position(0, 2);


    int idx = 0;
    while (!a.isDestroyed() && !b.isDestroyed()) {
      idx ++;
      if (idx > 4) {
        break;
      }
      if (turn == 0) {
        a.destroyOneCoordinate(guesses[idx]);
      } else {
        b.destroyOneCoordinate(guesses[idx]);
      }
      turn = (turn + 1)%2;
    }
    if (a.isDestroyed()) {
      System.out.println("A destroyed");
    }
    if (b.isDestroyed()) {
      System.out.println("B destroyed");
    }

  }



}