//Work Sheet of Exercise 2
void setup() {
  Serial.begin(115200); 
}
void loop( ) {
int n = 13579;// The num variable is used to store the reversed number
int num = 0;//The loop continues until all digits have been reversed
int reversed_num = n;//the reversed_num variable is used to keep track of the remaining digits.

  while (reversed_num>0)//The loop continues until all digits have been reversed
  {num = num * 10 + reversed_num % 10;
  reversed_num /= 10;
  }


Serial.println(num);//the final result is printed to the serial monitor using Serial.println()
while(1);
}