#include <stdio.h>

int main() {
  double salary, pa, pd , tf, ti, tax;
  int n;

  pa = 9000000;
  pd = 3600000;
  printf("Pleas input Salary this year: ");
  scanf("%lf", &salary);
  printf("Pleas input number of dependent: ");
  scanf("%d" , &n);
  tf = 12*(pa + n*pd);
  ti = salary - tf;
  if ( ti <= 0)
  {
    tax = 0;
    ti = 0;
  }
  else {
    if (ti <=5000000)
    {
      tax = ti * 0.5;
    }
    else if 
    (ti >5000000 && ti <= 10000000)
    {
      tax = ( 5000000 * 0.5) + ((ti-5000000) * 1);
    }
     else if 
    (ti >10000000 && ti <= 18000000)
    {
      tax = ( 5000000 * 0.5) + ((10000000) * 1
        + ((ti-5000000) * 1.5));
    }
     else if (ti > 18000000)
    {
        tax = ( 5000000 * 0.5) + ((10000000) * 1
        + (18000000) * 1.5) + ((ti - 18000000)*2);
    }

  }


  printf("\nTax-free income: %20.1lf", tf );
  printf("\nTaxable income: %20.1lf", ti );

  if (tax > 0)
  {
     printf("\nIncome tax: %20.1lf", tax );
  }



  return 0;
}