#include "TROOT.h"
#include "TF1.h"
#include "TMath.h"
#include "TFile.h"
#include "TTree.h"
#include <fstream>
#include <iomanip>
#include <cmath>
#include <stdio.h>
#include <stdlib.h>
#include <sstream>

using namespace std;

int main(int argc, char* argv[]) {

  //TTree t2;

  // Declaration of leaf types
  UInt_t          evntid;

  TFile *infile = new TFile("input_file_1.root");
  TTree *h22 = (TTree*)infile->Get("h22");

  h22->SetBranchAddress("evntid", &evntid);

  for (Int_t i=0;i<10;i++) {
    
    h22->GetEntry(i);

    cout << i << "\t" << evntid << endl;

  }

}