#!/bin/python3

import math
import os
import random
import re
import sys

# Complete the solve function below.
def solve(meal_cost, tip_percent, tax_percent):
    tip = (meal_cost * tip_percent)/100
    tax = (meal_cost * tax_percent)/100
    print(int(meal_cost + tip + tax + 0.5))
    # We add 0.5 because the float should be rounded to the nearest integer

if __name__ == '__main__':
    meal_cost = float(input())

    tip_percent = int(input())

    tax_percent = int(input())

    solve(meal_cost, tip_percent, tax_percent)

# Time complexity: O(1)
# Space complexity: O(1)

[]