#komentar
print("hello world")

age = 20
name = 'Anisa'

print('{0} was {1} years old when he wrote this book'.format(name, age))
print('WHy is {0} playing with that Phyton?'.format(name))
print(name+ ' was ' +str(age)+ ' years old when he wrote this book'.format(name, age))
print(f'{name} was {age} years old when he wrote this book')
print('{0:.3f}'.format(1.0/3))