Smoke On The Water. Easy Guitar Tabs for the intro of the song.
You have strings 1-6. String 1 is the bottom string, which is your highest pitched string and string 6 is your top, thick string, that is your lowest note string. The numbers on the chart are which fret you should play on. 0 means open fret, so you would just strum the string, but not play any any fret.
Below is the actual track of the song, you can tell how close you are to playing the song.