    let cnt = 0;
    function outputTime(val) {
        return new Promise(resolve => {
            setTimeout(() => {
                cnt++;
                resolve(`x value ${val} counter:${cnt}`);
            }, 1000);
        });
    }
    async function aCall(val) {
        console.log(`ready ${val} counter:${cnt}`);
        const res = await outputTime(val);
        console.log(res);
    }
    for (let x = 1; x < 4; x++) {
        aCall(x);
    }
