void setup() {
Serial.begin(9600);
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
pinMode(7, OUTPUT);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
pinMode(10, OUTPUT);
pinMode(11, OUTPUT);
}


void loop() {
int x=analogRead(A0);
int x2=map(x,0,1023,0,10);
 Serial.println(x2);
 if(x2==0){
  digitalWrite(2,0);
  digitalWrite(3,0);
  digitalWrite(4,0);
  digitalWrite(5,0);
  digitalWrite(6,0);
  digitalWrite(7,0);
  digitalWrite(8,0);
  digitalWrite(9,0);
  digitalWrite(10,0);
  digitalWrite(11,0);
  delay(200);
 }
 if( 1==x2){
  digitalWrite(2,1);
  digitalWrite(3,0);
  digitalWrite(4,0);
  digitalWrite(5,0);
  digitalWrite(6,0);
  digitalWrite(7,0);
  digitalWrite(8,0);
  digitalWrite(9,0);
  digitalWrite(10,0);
  digitalWrite(11,0);
  delay(200);
 }
 if(x2==2){
  digitalWrite(2,1);
  digitalWrite(3,1);
  digitalWrite(4,0);
  digitalWrite(5,0);
  digitalWrite(6,0);
  digitalWrite(7,0);
  digitalWrite(8,0);
  digitalWrite(9,0);
  digitalWrite(10,0);
  digitalWrite(11,0);
  delay(200);
 }
  if(x2==3){
  digitalWrite(2,1);
  digitalWrite(3,1);
  digitalWrite(4,1);
  digitalWrite(5,0);
  digitalWrite(6,0);
  digitalWrite(7,0);
  digitalWrite(8,0);
  digitalWrite(9,0);
  digitalWrite(10,0);
  digitalWrite(11,0);
  delay(200);
 }
  if(x2==4){
  digitalWrite(2,1);
  digitalWrite(3,1);
  digitalWrite(4,1);
  digitalWrite(5,1);
  digitalWrite(6,0);
  digitalWrite(7,0);
  digitalWrite(8,0);
  digitalWrite(9,0);
  digitalWrite(10,0);
  digitalWrite(11,0);
  delay(200);
 }
 if(x2==5){
  digitalWrite(2,1);
  digitalWrite(3,1);
  digitalWrite(4,1);
  digitalWrite(5,1);
  digitalWrite(6,1);
  digitalWrite(7,0);
  digitalWrite(8,0);
  digitalWrite(9,0);
  digitalWrite(10,0);
  digitalWrite(11,0);
  delay(200);
 }
 if(x2==6){
  digitalWrite(2,1);
  digitalWrite(3,1);
  digitalWrite(4,1);
  digitalWrite(5,1);
  digitalWrite(6,1);
  digitalWrite(7,1);
  digitalWrite(8,0);
  digitalWrite(9,0);
  digitalWrite(10,0);
  digitalWrite(11,0);
  delay(200);
 }
  if(x2==7){
  digitalWrite(2,1);
  digitalWrite(3,1);
  digitalWrite(4,1);
  digitalWrite(5,1);
  digitalWrite(6,1);
  digitalWrite(7,1);
  digitalWrite(8,1);
  digitalWrite(9,0);
  digitalWrite(10,0);
  digitalWrite(11,0);
  delay(200);
 }
 if(x2==8){
  digitalWrite(2,1);
  digitalWrite(3,1);
  digitalWrite(4,1);
  digitalWrite(5,1);
  digitalWrite(6,1);
  digitalWrite(7,1);
  digitalWrite(8,1);
  digitalWrite(9,1);
  digitalWrite(10,0);
  digitalWrite(11,0);
   delay(200);
 }
  if(x2==9){
  digitalWrite(2,1);
  digitalWrite(3,1);
  digitalWrite(4,1);
  digitalWrite(5,1);
  digitalWrite(6,1);
  digitalWrite(7,1);
  digitalWrite(8,1);
  digitalWrite(9,1);
  digitalWrite(10,1);
  digitalWrite(11,1);
   delay(200);
 }
  if(x2==10){
  digitalWrite(2,1);
  digitalWrite(3,1);
  digitalWrite(4,1);
  digitalWrite(5,1);
  digitalWrite(6,1);
  digitalWrite(7,1);
  digitalWrite(8,1);
  digitalWrite(9,1);
  digitalWrite(10,1);
  digitalWrite(11,1);
   delay(200);
 }
}