int quit=0;
void handler(int){quit=1;}

void scan_offset(){
   signal(SIGINT,handler);
   TCanvas c("c1","c1",0,0,1600,800);
   c.Divide(2,1);
    for(int i=0; i<=23; i++) {
        auto c1=c.cd(1);
        c1->SetGrid(1,1);
        TFile *f = new TFile(Form("results_run12_anodeoffset%d.root",i));
        //TH2F *h2 = (TH2F*)(f->Get("phicut/pczguess_vs_pc_int"));
        TH2F *h2 = (TH2F*)(f->Get("pcz_vs_sx3z"));
//        TH2F *h2 = (TH2F*)(f->Get("hPCQQQ/PC_XY_Projection_QQQ2"));
        if(!h2) continue;
        h2->SetTitle(Form("case%d",i));
        h2->Draw("colz");
        c1->Modified();
        c1->Update();

        auto c2=c.cd(2);
        c2->SetGrid(1,1);

        TH2F *h3 = (TH2F*)(f->Get("sx3phi_vs_pcphi1"));
//        TH2F *h2 = (TH2F*)(f->Get("hPCQQQ/PC_XY_Projection_QQQ2"));
        if(!h3) continue;
        h3->SetTitle(Form("case%d",i));
        h3->Draw("colz");
        c2->Modified();
        c2->Update();

        while(gPad->WaitPrimitive());

        f->Close();
        if(i==23) i=0;
        if(quit) break;
    }
}