const int analogInput1 = PA9;

const int analogInput2 = PA10;
void setup()
{ pinMode(PB1, OUTPUT);
 pinMode(PB2, OUTPUT);
lcd.clear();
}
void loop()
{
int analogVal1 = analogRead(analogInput1);
int analogVal2 = analogRead(analogInput2);
if (analogVal1>analogVal2) digitalWrite(PB2, LOW);
delay (300);
digitalWrite(PB1, HIGH);

delay (300);
if (analogVal2>analogVal1) digitalWrite(PB1, LOW);
delay (300);
digitalWrite(PB2, HIGH);
delay (300);
digitalWrite(PB2, LOW);
delay (3000);
}