after Santa Claus assistant Elf deliver present wish come true return North Pole find covered snow both tired decide remove snow road connect hut the North Pole n hut connect m road one road direction the Elf offer split Santa Claus clear wide road Elf tread narrow road for road decide clear Santa Claus Elf to minimize effort decide clear road fulfill condition hut exist exactly simple path clear road Santa Claus Elf clear number road at point Santa Claus assistant Elf wonder road clear