#Prompt the user to type a line
print('The robots are invading (your written work)! Robots are sneaking into your text\nfiles.')

print('')

line= input('Type a line to see if there are any robots in your text: ')

print('')

if str(line.upper()) == "ROBOT":
    if line.isupper() == True:
        print('There is a big robot in the line.')
    if line.islower() == True:
        print('There is a small robot in the line.')
    if line.isupper() == False and line.islower() == False:
        print('There is a medium sized robot in the line')

else:
    print('There is no robot in this line')