void d1(TMultiGraph *pMG, TGraph *pG, double shift)
{
	double x[10],y[10];
	int i;
	for(i = 0; i < 10; ++i)
	{
	   x[i] = (double)i;
	   y[i] = x[i] + shift;
	}
	pG = new TGraph(10,x,y);
	pMG->Add(pG,"L");
	pMG->Draw("A");
}