for a in range(1, 10):
      for b in range(0, 10):
          for c in range(0, 10):
               for d in range(1, 10):
                   links = "%d%d%d%d" % (a,b,c,d)
                   rechts = "%d%d%d%d" % (d,c,b,a)
                   links = 4*float(links)
                   rechts = float(rechts)
                   if(a!=b!=c!=d):
                      if(links == rechts):
                          print("A=%d, B=%d, C=%d, D=%d" %(a,b,c,d))