def area_calculator(width,length):
    area = width*length
    return area

print("When width=18, length=20, then area is",area_calculator(18,20))
print("When width=19, length=20, then area is",area_calculator(19,20))
print("When width=20, length=20, then area is",area_calculator(20,20))
print("When width=17, length=20, then area is",area_calculator(17,20))






