// Adafruit Motor Shield library - Version: Latest

// left motor is in1 and in2
// right motor is in3 and in4

#define in1 7
#define in2 8
#define in3 9
#define in4 10


void setup() {

  pinMode (in1, OUTPUT);
  pinMode (in2, OUTPUT);
  pinMode (in3, OUTPUT);
  pinMode (in4, OUTPUT);

}

// left motor is in1 and in2
// right motor is in3 and in4

void loop() {
    digitalWrite (in1, LOW);
    digitalWrite (in2, HIGH);
    digitalWrite (in3, LOW);
    digitalWrite (in4, HIGH);
  }