let count = 2;


const calc1 = () => {
    return new Promise((res, rej) => {
        setTimeout(() => { count = count + 1; res(count) }, 2000)
    })
}

const calc2 = () => {
    return new Promise((res, rej) => {
        setTimeout(() => { count = count * 2; res(count) }, 3000)
    })
}
calc2().then(result => {
    count = result;
    calc1().then(result => {
        count = result;
        console.log(count);
    })
})