int led1 = 2; 
int led2 = 3; 
int led3 = 4; 
int led4 = 5; 
int onoff = 6; 
int blue = 9;
int green = 10;
int red = 11;
int time = 0;
int i=0;

void setup () { 
  
  pinMode(led1, INPUT);
  pinMode(led2, INPUT);
  pinMode(led3, INPUT);
  pinMode(led4, INPUT);
  pinMode(onoff, OUTPUT);
  pinMode(red,  OUTPUT);
  pinMode(green,  OUTPUT);
  pinMode(blue,   OUTPUT);
  analogWrite(red, 255);
  analogWrite(green, 190);
  analogWrite(blue, 140);
  delay(2000);
  analogWrite(red, 0);
  analogWrite(green, 0);
  analogWrite(blue, 0);
  digitalWrite(onoff, HIGH);
  delay(100);
  digitalWrite(onoff, LOW);
  
} 



void loop () { 
   if ((digitalRead(led1)==0)&&(digitalRead(led2)==0)&&(digitalRead(led3)==0)&&(digitalRead(led4)==0)) //0000
     {
       analogWrite(red, 255);
       analogWrite(green, 190);
       analogWrite(blue, 140);
     }
    else if ((digitalRead(led1)==0)&&(digitalRead(led2)==0)&&(digitalRead(led3)==0)&&(digitalRead(led4)==1)) //0001
           {
             analogWrite(red, 255);
             analogWrite(green, 255);
             analogWrite(blue, 255);
           }
    else if ((digitalRead(led1)==0)&&(digitalRead(led2)==0)&&(digitalRead(led3)==1)&&(digitalRead(led4)==0)) //0010
           {
             analogWrite(red, 100);
             analogWrite(green, 255);
             analogWrite(blue, 255);
           }
    else if ((digitalRead(led1)==0)&&(digitalRead(led2)==0)&&(digitalRead(led3)==1)&&(digitalRead(led4)==1)) //0011
           {
             analogWrite(red, 255);
             analogWrite(green, 100);
             analogWrite(blue, 255);
           }
    else if ((digitalRead(led1)==0)&&(digitalRead(led2)==1)&&(digitalRead(led3)==0)&&(digitalRead(led4)==0)) //0100
           {
             analogWrite(red, 255);
             analogWrite(green, 255);
             analogWrite(blue, 100);
           }
    else if ((digitalRead(led1)==0)&&(digitalRead(led2)==1)&&(digitalRead(led3)==0)&&(digitalRead(led4)==1))  //0101
           {
             analogWrite(red, 100);
             analogWrite(green, 255);
             analogWrite(blue, 100);
           }
    else if ((digitalRead(led1)==0)&&(digitalRead(led2)==1)&&(digitalRead(led3)==1)&&(digitalRead(led4)==0))  //0110
           {
             analogWrite(red, 100);
             analogWrite(green, 100);
             analogWrite(blue, 255);
           }
    else if ((digitalRead(led1)==0)&&(digitalRead(led2)==1)&&(digitalRead(led3)==1)&&(digitalRead(led4)==1))  //0111
           {
             analogWrite(red, 255);
             analogWrite(green, 100);
             analogWrite(blue, 100);
           }
    else if ((digitalRead(led1)==1)&&(digitalRead(led2)==0)&&(digitalRead(led3)==0)&&(digitalRead(led4)==0))  //1000
           {
             analogWrite(red, 100);
             analogWrite(green, 100);
             analogWrite(blue, 100);
           }
    else if ((digitalRead(led1)==1)&&(digitalRead(led2)==0)&&(digitalRead(led3)==0)&&(digitalRead(led4)==1))  //1001
           {
             analogWrite(red, 25);
             analogWrite(green, 180);
             analogWrite(blue, 120);
           }
    else if ((digitalRead(led1)==1)&&(digitalRead(led2)==0)&&(digitalRead(led3)==1)&&(digitalRead(led4)==0))  //1010
           {
             analogWrite(red, 130);
             analogWrite(green, 255);
             analogWrite(blue, 200);
           } 
    else if ((digitalRead(led1)==1)&&(digitalRead(led2)==0)&&(digitalRead(led3)==1)&&(digitalRead(led4)==1))  //1011
           {
             analogWrite(red, 170);
             analogWrite(green, 7);
             analogWrite(blue, 255);
           }
    else if ((digitalRead(led1)==1)&&(digitalRead(led2)==1)&&(digitalRead(led3)==0)&&(digitalRead(led4)==0))  //1100
           {
             analogWrite(red, 0);
             analogWrite(green, 255);
             analogWrite(blue, 255);
           }
    else if ((digitalRead(led1)==1)&&(digitalRead(led2)==1)&&(digitalRead(led3)==0)&&(digitalRead(led4)==1))  //1101
           {
             analogWrite(red, 255);
             analogWrite(green, 0);
             analogWrite(blue, 255);
           }
    else if ((digitalRead(led1)==1)&&(digitalRead(led2)==1)&&(digitalRead(led3)==1)&&(digitalRead(led4)==0))  //1110
           {
             analogWrite(red, 255);
             analogWrite(green, 255);
             analogWrite(blue, 0);
           }
    else if ((digitalRead(led1)==1)&&(digitalRead(led2)==1)&&(digitalRead(led3)==1)&&(digitalRead(led4)==1))  //1111
           {
             analogWrite(red, 0);
             analogWrite(green, 0);
             analogWrite(blue, 0);
           }
  }