function delay(t, v) {
    return new Promise(function (resolve) {
        setTimeout(resolve.bind(null, v), t)
    });
}

Promise.prototype.delay = function (t) {
    return this.then(function (v) {
        return delay(t, v);
    });
}

function solve (time) {
    Promise.resolve("hello1").delay(time).then(function (v) {
        console.log("111111");
    }).then(function (v) {
        setTimeout(() => {
            console.log("222222");
        }, time);
    }).delay(time).then(function (v) {
        setTimeout(() => {
            console.log("333333");
        }, time);
    }).delay(time).then(function (v) {
        setTimeout(() => {
            console.log("444444");
        }, time);
    })
}

solve(2000)