RFID Reader - HZ 1050 - Left - Right Side Code

#include <SoftwareSerial.h>

SoftwareSerial mySerial(22, 23); // RX, TX
unsigned int data1;
unsigned int data2;
unsigned int data3;
unsigned int data4;
void setup() {
  Serial.begin(9600);
  mySerial.begin(9600);
}

void loop() {
  if (mySerial.available() > 0)
  {
    data1 = mySerial.read();
    delay(10);
    data2 = mySerial.read();
    delay(10);
    data3 = mySerial.read();
    delay(10);
    data4 = mySerial.read();
    delay(10);
    long manuid = (data1 * 256) + (data2);
    int cardid = (data3 * 256) + (data4);
    char buf[10];
    ltoa(manuid, buf, 16);

    char buff[10];
    char newbuff[10];
    char deger[] = "";

    ltoa(cardid, buff, 16);
    sprintf(newbuff, "%04s", buff);
    strcat(deger, buf);
    strcat(deger, newbuff);
    int number = (int)strtol(deger, NULL, 16);
    Serial.println(number);

  }




}