(function () {
    let _in = 0;
    let _out = 0;
    document.querySelectorAll(".message-in").forEach(e => {
        e.querySelectorAll(".selectable-text").forEach(e => _in += (e.innerText || "").length)
    });
    document.querySelectorAll(".message-out").forEach(e => {
        e.querySelectorAll(".selectable-text").forEach(e => _out += (e.innerText || "").length)
    });
    console.log('in: ', _in);
    console.log('out: ', _out);
})()