n=0 s=0 a=[] b=[] l1=['A','B','C','D','F'] l2=[4.0,3.0,2.0,1.0,0.0] l3=['1','2','3','4','5','6','7','8','9'] while True: m=input() if m in l1: e=m c=l1.index(e) a.append(l2[c]) elif m in l3: e=int(m) b.append(e) else: break for i in range(0,l...