import csv
s = {}
for r in csv.DictReader(open("scores.csv")):
    d = s.setdefault(r["student"], {"q": [], "h": [], "e": 0})
    sc, late = float(r["score"]), int(r["days_late"])
    if r["item"].startswith("quiz"): d["q"].append(sc)
    elif r["item"].startswith("hw"): d["h"].append(max(0, sc - 10 * late))
    else: d["e"] = sc
w = csv.writer(open("finals.csv", "w", newline="")); w.writerow(["student", "final"])
for st, d in s.items():
    q = sorted(d["q"])[1:]
    w.writerow([st, f"{0.3 * sum(q) / len(q) + 0.3 * sum(d['h']) / len(d['h']) + 0.4 * d['e']:.1f}"])