Analyse the disorption detail of polymer on membrane Usage: python3 FindLoop.py NM NP X Y Z BP AP XML DCD NM: number of monomer NP: number of polymer X: length of box by x-axis in the unit of nanometer Y: length of box by y-axis in the unit of nanometer Z: length of box by z-axis in the unit of nanometer BP: sigma of interaction between B and P AP: sigma of interaction between A and P XML: name of the XML file DCD: name of the DCD file