Data to be used in the  Currency exchange program.

First transaction:       456700 won and agree to give the change to UNICEF

Second transaction:    24 pounds  and refuse to give the change to UNICEF

Third transaction:  Indicate that you want to exhange 'frank'    That is, misspell franc as frank.
                                On the second try, enter   250 franc  and agree to give the change to UNICEF