const int LEDone = 9;     // pin that the first LED is on
const int LEDtwo = 10;   // pin that the second LED is on
const int LEDone = 11;     // pin that the third LED is on
const int LEDtwo = 12;   // pin that the fourth LED is on
const int sensorPin=0;  //pin that the sensor is on
int sensorValue = 0;  // value read from the analog sensor