turn 1 switch on for 10 mins then offtvb now,tvbnow,bttvb; F) [- @5 `( D9 t' k
turn another 1 on then go to the other house
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2 m( S$ V g9 s6 N* Etvb now,tvbnow,bttvbthe hot light bulb is the first the cold light bulb is the 3rd |