/*Copyright ElohimTov LLC*/


/*
//Name: ElohimTov Solve Code - Operators - C Solution
//Problem: HackerRank - 30 Days of Code - Operators
//Current File: ElohimTovSolve_Operators.(c).txt
//Compile-able File: ElohimTovSolve_Operators.c
//Date: 05/23/2020
//Tale: ElohimTov Solve's Solution to HackerRank.com's
//	Operators problem, in C programming language.
// 	Problem link at https://elohimtov.com/elohimtov.info.
*/


#include <assert.h>
#include <limits.h>
#include <math.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>


//define globals
char* readline();
double HUNDRED = 100.00;


// Complete the solve function below.
void solve(double meal_cost, int tip_percent, int tax_percent)
{
    double tip_amount = meal_cost * (tip_percent/HUNDRED);
    double tax_amount = meal_cost * (tax_percent/HUNDRED);
    double total_meal_cost = meal_cost + tip_amount + tax_amount;
    int total_rounded_cost = round(total_meal_cost);
    printf("%d\n", total_rounded_cost);
}//ends solve(...) function


/*
//CREDIT: The following main() function was provided by HackerRank.com
*/
int main()
{
    //input meal cost
    char* meal_cost_endptr;
    char* meal_cost_str = readline();
    double meal_cost = strtod(meal_cost_str, &meal_cost_endptr);
    if(meal_cost_endptr == meal_cost_str || *meal_cost_endptr != '\0')
    { exit(EXIT_FAILURE); }

    //input tip percent
    char* tip_percent_endptr;
    char* tip_percent_str = readline();
    int tip_percent = strtol(tip_percent_str, &tip_percent_endptr, 10);
    if(tip_percent_endptr == tip_percent_str || *tip_percent_endptr != '\0')
    { exit(EXIT_FAILURE); }

    //input tax cost
    char* tax_percent_endptr;
    char* tax_percent_str = readline();
    int tax_percent = strtol(tax_percent_str, &tax_percent_endptr, 10);
    if(tax_percent_endptr == tax_percent_str || *tax_percent_endptr != '\0')
    { exit(EXIT_FAILURE); }

    //computer total cost of meal
    solve(meal_cost, tip_percent, tax_percent);
    return 0;
}//ends main() function


/*
//CREDIT: The following readline() function was provided by HackerRank.com
*/
char* readline()
{
    size_t alloc_length = 1024;
    size_t data_length = 0;
    char* data = malloc(alloc_length);

    while (true)
    {
        char* cursor = data + data_length;
        char* line = fgets(cursor, alloc_length - data_length, stdin);

        if (!line) { break; }

        data_length += strlen(cursor);

        if (data_length < alloc_length - 1 || data[data_length - 1] == '\n') { break; }

        size_t new_length = alloc_length << 1;
        data = realloc(data, new_length);

        if (!data) { break; }

        alloc_length = new_length;
    }

    if (data[data_length - 1] == '\n')
    {
        data[data_length - 1] = '\0';
    }

    data = realloc(data, data_length);
    return data;
}//ends readline() function


/*Copyright ElohimTov LLC*/