IR remote

#include <IRremote.h>
int IRpin=12;
IRrecv IR(IRpin);
decode_results cmd;
int RP=6;
int YP=5;
int GP=4;

void setup() {
Serial.begin(9600);
IR.enableIRIn();
Serial.begin(9600);
pinMode(RP,OUTPUT);
pinMode(GP,OUTPUT);
pinMode(YP,OUTPUT);
}

void loop() {
while (IR.decode(&cmd)==0){
}
Serial.println(cmd.value,HEX);
delay(100);
IR.resume();
if (cmd.value==0xFF6897){
   digitalWrite(RP, HIGH);
   digitalWrite(YP, LOW);
    digitalWrite(GP, LOW);
  }
if (cmd.value==0xFF30CF){
   digitalWrite(RP, LOW);
   digitalWrite(YP, HIGH);
    digitalWrite(GP, LOW);
  }
if (cmd.value==0xFF18E7){
    digitalWrite(RP, LOW);
   digitalWrite(YP, LOW);
    digitalWrite(GP, HIGH);
  }
  if (cmd.value==0xFFA25D){
    digitalWrite(RP, LOW);
   digitalWrite(YP, LOW);
    digitalWrite(GP, LOW);
  }
}