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#include <IRremote.h>

const int RECV_PIN = 7;
IRrecv irrecv(RECV_PIN);
decode_results results;
unsigned long key_value = 0;

void setup(){
  Serial.begin(9600);
  irrecv.enableIRIn();
  irrecv.blink13(true);
}

void loop(){
  if (irrecv.decode(&results)){

        if (results.value == 0XFFFFFFFF)
          results.value = key_value;

        switch(results.value){
          case 0xFF6897:
          Serial.println("0");
          break ;
          case 0xFF9867:
          Serial.println("100+");
          break ;
          case 0xFFB04F:
          Serial.println("200+");
          break ;
          case 0xFF30CF:
          Serial.println("1");
          break ;
          case 0xFF18E7:
          Serial.println("2");
          break ;
          case 0xFF7A85:
          Serial.println("3");
          break ;
          case 0xFF10EF:
          Serial.println("4");
          break ;
          case 0xFF38C7:
          Serial.println("5");
          break ;
          case 0xFF5AA5:
          Serial.println("6");
          break ;
          case 0xFF42BD:
          Serial.println("7");
          break ;
          case 0xFF4AB5:
          Serial.println("8");
          break ;
          case 0xFF52AD:
          Serial.println("9");
          break ;
        }
        key_value = results.value;
        irrecv.resume();
  }
}