int pb=12;
int pb=11;

void setup() {
  // put your setup code here, to run once:
pinMode(pb, INPUT_PULLUP);
pinMode(pb, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
if(digitalRead(pb) == LOW){
  digitalRead(led,HIGH);
}else{
  digitalRead(led,LOW);
}  
}