const colors = ['#ff6b6b', '#4ecdc4', '#45b7d1', '#96ceb4', '#ffeaa7', '#dda0dd'];
let current = 0;

setInterval(() => {
  current = (current + 1) % colors.length;
  document.body.style.backgroundColor = colors[current];
}, 1000);

window.test = function(world) {
    console.log('Hello, ' + world + '!');
}