import prettytable

tables = {}
active_table_id = 0
r = 3

def avg(a):
    return sum(a) / len(a)

with open("sample_data.txt") as f:
    for l in f:
        if l.rstrip("\n\r") == '':
            continue

        if l[0] == "#":
            sl = l[1:].split()

            if len(sl) == 2:
                if sl[0] == "table":
                    new_id = int(sl[1])
                    tables[new_id] = {"s": [], "C": 0.0}
                    active_table_id = new_id

                elif sl[0] == "C":
                    tables[active_table_id]["C"] = float(sl[1])

        else:
            tables[active_table_id]['s'].append(list(map(float, l.split())))

ti = list(tables.items())
ti.sort(key = lambda x: x[0])

for i, t in ti:
    print(f"Table {i}")

    s = t['s']
    c = t['C']

    avg_n = [avg(a) for a in zip(*s)]
    print("❬n❭ : " + ", ".join(list(map(lambda x: str(round(x, r)), avg_n))))

    avg_Cix_U = [c * avg_n[2*a] / avg_n[2*a+1] for a in range(2)]
    print("❬Cix(Ui)❭ : " + ", ".join(list(map(lambda x: str(round(x, r)), avg_Cix_U))))

    avg_Cix_final = avg(avg_Cix_U)
    print(f"Результат для ❬Сix❭: {avg_Cix_final}\n")