Suppose I has the next text:
ACTION ADVENTURE COMEDY CRIME DRAMA FANTASY HISTORICAL HISTORICAL HORROR MAGICAL MYSTERY PARANOID PHILOSOPHICAL POLITICAL ROMANCE SAGA SATIRE SCIENCE SOCIAL SPECULATIVE THRILLER URBAN WESTERN
And I want by Multiple cursors https://github.com/magnars/multiple-cursors.el
add mulitple cursors in the start of all lines. I don't know count of all lines.