print('How wide is the wall?')
width = int(input())
print('How high is the wall?')
height = int(input())
print('How much is a gallon of paint?')
price = int(input())
gallon = 400
wall_size = width * height
wall_size = wall_size // gallon
cost = price * wall_size
print('It will cost $' + str(cost))

b17f209cfc2a7cded440fbfac7d253a34f2dc9fb
<mask token>

print('How wide is the wall?')
<mask token>
print('How high is the wall?')
<mask token>
print('How much is a gallon of paint?')
<mask token>
print('It will cost $' + str(cost))

print('How wide is the wall?')
width = int(input())
print('How high is the wall?')
height = int(input())
print('How much is a gallon of paint?')
price = int(input())
gallon = 400
wall_size = width * height
wall_size = wall_size // gallon
cost = price * wall_size
print('It will cost $' + str(cost))
