arr = []
for i in range(1,11):
    temp = []
    ogrenci_adi = input(str(i) + ". Ogrencinin Adini Giriniz : ")
    Not1 = input("1.Not : " )
    Not2 = input("2.Not : " )
    ortalama = (int(Not1) + int(Not2)) / int(2)
    temp = [ogrenci_adi, str(Not1), str(Not2), str(ortalama)]
    arr.append(temp)
for ogrenci_adi, not1, not2, ortalama in (arr):    
    print(ogrenci_adi + " / " + not1 + " / " + not2 + " / " + ortalama)