#include <stdio.h>

int main()
{
    float basic, da, hra, gross;

    printf("Enter Basic Salary");
    scanf("%f%f%f",&basic,&da,&hra);

    da = basic * 0.40;
    hra = basic * 0.20;
    gross = basic + da + hra;

    printf("%f", gross);

    return 0;
}