How to play Lobo 77

About Double Down, from BoardGameGeek:

Double Down, first released as Lobo 77, is a simple game of playing cards to add to (or subtract from) a running total. Players must try to avoid creating a total which is a multiple of 11, or taking the total over 77. Chips, given out at the start of the game, are lost as players fail to keep to these rules. The last player with chips remaining wins.