human
... will replace the cell contents with:"
Please write code following the instructions in jupyter notebook style.
assistant
#Here is code to .

x = {'a': 37, 'b': 42, 'c': 927}

y = 'hello ' 'world'
z = 'hello ' + 'world'
a = 'hello {}'.format('world')

class foo(object):
    def f(self):
        return 37 * -+2

    def g(self, x, y=42):
        return y

def f(a):
    return 37 + -+a[42 - x:y**3]