player.onChat("16-3", function () {
    for (let i = 0; i < 3; i++) {
        for (let j = 0; j < 3; j++) {
            switch (i) {
                case 2:
                    agent.setSlot(2)
                    break;
                default:
                    agent.setSlot(1)
                    break;
            }
            agent.place(FORWARD);
            agent.move(RIGHT, 1);
        }
        agent.move(UP, 1);
        agent.move(LEFT, 3);
    }
});