text: # Python - 3.6.0
  
  Test.assert_equals(replace_exclamation('Hi!'), 'H!!')
  Test.assert_equals(replace_exclamation('!Hi! Hi!'), '!H!! H!!')
  Test.assert_equals(replace_exclamation('aeiou'), '!!!!!')
  Test.assert_equals(replace_exclamation('ABCDE'), '!BCD!')
  