import os;2
print('hello')
one='spam eggs '
#printing a word which has '
two="doesn't"
print(one+two)
#concatenate
print('Isn\'t?, they said.')
#nextone lol. Strings can be concatenated (glued together) with the + operator, and repeated with *:
print (3 * 'un' + 'ium')
concat= (3 * 'un' + 'ium');
#pritn the placeholder value
print (concat[1])
print (concat[-1])
#lists now
squares = [1, 4, 9, 16, 25]
print(squares+squares)
print(squares[0])
print(squares[-3:-1])