Added one possible simple solution
Added one possible simple solution

Also fixed a typo.  Three (line 8)
GenericSnake/interactive-tutorials,ubear/interactive-tutorials,revzim/interactive-tutorials,revzim/interactive-tutorials,like9729/interactive-tutorials,GenericSnake/interactive-tutorials,revzim/interactive-tutorials,like9729/interactive-tutorials,GenericSnake/interactive-tutorials,ronreiter/interactive-tutorials,like9729/interactive-tutorials,ubear/interactive-tutorials,daftano/interactive-tutorials,like9729/interactive-tutorials,ronreiter/interactive-tutorials,ubear/interactive-tutorials,revzim/interactive-tutorials,daftano/interactive-tutorials,ronreiter/interactive-tutorials,ubear/interactive-tutorials,daftano/interactive-tutorials,daftano/interactive-tutorials