input: 'Hello World',6,right
output: ' Hellon World'

input: 'Hello World',7,left
output: 'Hello  nWorld  '

input: 'Hello World',7,middle
output: 'Hello  nWorld  '

input: 'This is a test case',5,middle
output: 'This nis  antest ncase '

input: 'This is a test case',5,left
output: 'This nis a ntest ncase '

input: 'For example',1,left
output: 'Fnonrnenxnanmnpnlne' #The space is removed as the next word is in a newline.

input: 'Hello Worlds How are you',5,left
output: 'HellonWorldns Hownare  nyou  '

input: 'qwert asdfghjkl zxcvbnm',7,middle
output: 'qwert ansdfghjknl      nzxcvbnm'

input: 'ab abcdefg',6,middle
output: 'ab    nabcdefng     '

input: 'This is code golf so shortest code wins',10,middle
output: 'This    isncode  golfnso        nshortest  ncode  wins'