player.onChat("7-3", function (width) {
    for (let i = 0; i < width; i++) {
        for (let j = 0; j < 5; j++) {
            agent.move(FORWARD, 1);
            agent.place(DOWN);
        }
        agent.move(BACK, 5);
        agent.move(LEFT, 1);
    }
});