#include<stdio.h>

float total_salary(int basic){

    float Total, HRA, DA, Tax;

    // HRA and DA Calculation

    if(basic <= 1000){

        HRA = (basic / 100) * 20;
        DA = (basic / 100) * 80;

    }else if(basic > 1000 && basic <= 20000){

        HRA = (basic / 100) * 25;
        DA = (basic / 100) * 90;

    }else if(basic >= 20001){

        HRA = (basic / 100) * 30;
        DA = (basic / 100) * 95;

    }

    Total = HRA + DA;

    // Tax Deduction
    // Yearly 10%, So Monthly = 10 / 12

    Tax = ((Total / 100) * 10) / 12;
    Total = Total - Tax;

    return Total;
}

int main(){

    int salary;
    float gross_salary;

    printf("Basic Salary: ");
    scanf("%d", &salary);

    gross_salary = total_salary(salary);

    printf("Gross Salary: %.2f\n\n", gross_salary);

    return 0;
}