# Arup Guha
# 7/5/2012
# Simple if

TAX_RATE = 6.5

cost = float(input("How much is your item?\n"))
istaxed = input("Is your item taxed (yes/no)?\n")

if istaxed == 'yes':
    cost = cost + cost*TAX_RATE/100.0
else:
    print("yeah, you get a coupon!")

print("Your final cost is $",cost,".",sep="")