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