function say(val, time) {
    return new Promise((resolve, reject) => {
        setTimeout(() => {
            console.log(val)
            resolve();
        }, time);
    })
}
async function fn() {
    await say(1, 1000);
    await say(2, 2000);
    await say(3, 3000);
    await say(4, 4000);
    await say(5, 5000);
}
fn();