Remove invalid code points from print_chr

밞빠따받반타다맣밦뿌
뿌멓썩뻐터벍뻐떠벎더
받반타다빠싺맣빠받두
쑨뻐더더뻐벌뻐멓썫뻐
맣삭빠맣사밤밣따빠쑩
두벅뻐멓썮뻐터벋뻐멓
빠싿맣산맣삭빠밤타뭏
투벓뻐서멓뻐섢멓뻐서
빠싼맣삱빠맣사빠밞투
뿌섡멓석멓선멓뻐섟멓
맣사빠밤다빠싹맣삯뿌
붏뻐서멓뻐섣멓뻐섢멓
다빠싼맣삱빠맣사빠붒
뭏섞멓섟멓더벖뻐멓터
삱맣삭빠맣박다빠맣숞
뿌터벎뻐서멓선멓섣멓
밤타맣맣밤타맣삭맣희