int ledm1 = 2;
int ledk1 = 3;
int ledh1 = 4;

int ledm2 = 5;
int ledk2 = 6;
int ledh2 = 7;

void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
pinMode(ledm1, OUTPUT);
pinMode(ledk1, OUTPUT);
pinMode(ledh1, OUTPUT);
pinMode(ledm2, OUTPUT);
pinMode(ledk2, OUTPUT);
pinMode(ledh2, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(ledm1, HIGH);
digitalWrite(ledk1, LOW);
digitalWrite(ledh1, LOW);
digitalWrite(ledm2, LOW);
digitalWrite(ledk2, LOW);
digitalWrite(ledh2, HIGH);
delay(3000);

digitalWrite(ledm1, LOW);
digitalWrite(ledk1, HIGH);
digitalWrite(ledh1, LOW);
digitalWrite(ledm2, LOW);
digitalWrite(ledk2, HIGH);
digitalWrite(ledh2, LOW);
delay(3000);

digitalWrite(ledm1, LOW);
digitalWrite(ledk1, LOW);
digitalWrite(ledh1, HIGH);
digitalWrite(ledm2, HIGH);
digitalWrite(ledk2, LOW);
digitalWrite(ledh2, LOW);
delay(3000);

}