12. (8 pts) Complete the following format strings to produce the exact output shown below. >>> '{ }',format (11/8) # a single blank at the beginning I 1.38' >>> '{ __}'.format (11/8) # two blanks at the beginning 1.4) >>> '{ _}',format (11/8) # a single blank at the beginning I 1.4 >>> '{ }'.format (11/8) '1.3750e+00