#include <stdio.h>

/* main function */
int main(void)
{
  /* variable definitions */
  double balance, interest=0;
  int year,rate,deduction=0;

  /* input section */
  printf("Please enter the initial bank balance in $: ");
  scanf("%lf", &balance);
  printf("Please enter the annual interest rate in %% : ");
  scanf("%d", &rate);

  printf("Year\t\tInterest\tDeduction\tBalance\n");

  /* computation and output section */
  for(year = 0; year <= 20; year++)
  { 
    printf("%-16d%-16.2f%-16d%-16.2f\n",year,interest,deduction,balance);

    interest = balance * (double)rate/(double)100;

    if (year%2 == 0) 
     { deduction = 2000; }
    else 
     { deduction = 1500; }

    balance = balance + interest - deduction;
  } 

  return 0;
} /* end of main */