How to plot a histogram from a txt?

ROOT
1

Hi everyone,

I got a txt with a series of numbers such as following:
1776 589 240 1776 259 1774 211 1780 747 776 1776 1776 33 1709 95 1780 776 1776 1776 33 1709 95 1780 776 1776 1776 33 1709 95 1780 776 1776 1776 33 1709 95 1780 776 1776 1776 33 1709 95 1780 776 1776 1776 33 1709 95 1780 776 1776 1776 33 1709 95 1780 776 1776 1776 33 1709 95 1780 776 1776 1776 33 1709 95 1780 776 1776 1776 33 1709 95 1780 776 1776 1776 33 1709 95 1780 776 1776 1776 33 1709 95 1780

How to use a simple code to plot a histogram?
I attempted but not success. Anyone can give me a hand? Thanks
{
Int_t number;

TH1F histogram(“data”,“test”,100,0,2000);

ifstream myfile(“firstdata.txt”);

if(myfile.is_open()) {

while(myfile.good()) {

myfile >> number;      

histogram.Fill(number);

}

}

myfile.close();

histogram.Draw();

}

2

{ Int_t number; TH1F *data = new TH1F("data", "test", 100, 0, 2000); ifstream myfile("firstdata.txt"); if(myfile.is_open()) { while(1) { myfile >> number; if (!(myfile.good())) break; data->Fill(number); } myfile.close(); } data->Draw(); }