12. Trade Commissions

# град -> text
# продажби -> float
# печалба = процент * продажби

town = input() # Sofia, Plovdiv, Varna, other (Error)
sales = float(input()) #0 ≤ s ≤ 500; 500 < s ≤ 1 000; 1 000 < s ≤ 10 000; s > 10 000

if town == "Sofia":
    # проверка за броя на продажбите
    if 0 <= sales <= 500:
        # 5% -> 5 / 100 = 0.05
        print(f"{0.05 * sales:.2f}")
    elif 500 < sales <= 1000:
        # 7% -> 0.07
        print(f"{0.07 * sales:.2f}")
    elif 1000 < sales <= 10000:
        # 8% -> 0.08
        print(f"{0.08 * sales:.2f}")
    elif sales > 10000:
        # 12% -> 0.12
        print(f"{0.12 * sales:.2f}")
    else:
        print("error")
elif town == "Plovdiv":
    # проверка за броя на продажбите
    # печалба = процент * продажбите
    if 0 <= sales <= 500:
        print(f"{0.055 * sales:.2f}")
    elif 500 < sales <= 1000:
        print(f"{0.08 * sales:.2f}")
    elif 1000 < sales <= 10000:
        print(f"{0.12 * sales:.2f}")
    elif sales > 10000:
        print(f"{0.145 * sales:.2f}")
    else:
        print("error")
elif town == "Varna":
    # проверка за броя на продажбите
    # печалба = процент * продажбите
    if 0 <= sales <= 500:
        print(f"{0.045 * sales:.2f}")
    elif 500 < sales <= 1000:
        print(f"{0.075 * sales:.2f}")
    elif 1000 < sales <= 10000:
        print(f"{0.1 * sales:.2f}")
    elif sales > 10000:
        print(f"{0.13 * sales:.2f}")
    else:
        print("error")
else:
    print('error')