/*	Example 3.2: Better exchange kiosk 
	Course: IS 0015
	Author: Peter Brusilovsky
	
	This program calculates the amount of dollars 
	received in an exchange kiosk for the given
	amount in German marks
	
*/
#include <stdio.h>

main()
{
	float dollars_for_mark = 0.55; /* exchange rate */
	int comission = 3; /* comission in dollars */
	int marks; float dollars;
	
	/* get data */
	printf("Marks to exchange?: ");
	scanf("%d",&marks); 
	
	/* calculate USD */
	dollars = marks * dollars_for_mark - comission;
	
	/* print result */
	printf("For %6.2f marks you will get %6.2f dollars!\n" , marks, dollars);
	/* 	OOPS! 
		We have tried to print an integer variable marks 
		using %6.2f designed for floats - and printf has printed very strange result */
		
	/* now we print it properly */		
	printf("For %d marks you will get %6.2f dollars!\n" , marks, dollars);

}