void setup()
{
    // put your setup code here, to run once:

    //1 //     r  r
    // PORTD = 0b011011;
    // //2 //    r  r
    // PORTC = 0b110110;
    // // red 1
    // PORTD=0b011111;
    // // red 2
    // PORTD=0b111011;
    // // red 3
    // PORTC=0b110111;
    // // red 4
    // PORTC=0b111110;


}

void loop()
{
    // put your main code here, to run repeatedly:
    Traffic_lights();


}
void Traffic_lights()
{
    DDRD |= 0XFF;
    DDRC |= 0XFF;
    //yellow 1
    PORTD = 0b011110;
    PORTC = 0b110110;
    delay(2000);
    //green 1
    PORTD = 0b011101;
    PORTC = 0b110110;
    delay(5000);
    //yellow 2
    PORTD = 0b101011;
    PORTC = 0b110110;
    delay(2000);
    //green 2
    PORTD = 0b110011;
    PORTC = 0b110110;
    delay(5000);
    //yellow 3
    PORTC = 0b110101;
    PORTD = 0b011011;
    delay(2000);
    //green 3
    PORTC = 0b110011;
    PORTD = 0b011011;
    delay(5000);
    //yellow 4
    PORTC = 0b101110;
    PORTD = 0b011011;
    delay(2000);
    //green 4
    PORTC = 0b011110;
    PORTD = 0b011011;
    delay(5000);



}