Two for-loops, single variable

#include<Servo.h>
Servo ServoUpDown; //Name your Servo-Motor
Servo ServoLeftRight;
int ServoActDelay=500;
int LrAngles;

void setup()
{
  Serial.begin(9600);
  ServoUpDown.attach(5); // Servo-Sensor PIN is no.5
  ServoLeftRight.attach(9); //Servo-Sensor PIN is no.9
}

void loop()
{
    delay(1000);

  for (LrAngles=90;LrAngles<=100;LrAngles=LrAngles+1)
  {
    Serial.print(" Turning ...., next angle is : ");Serial.println(LrAngles);
    delay(200);
     ServoLeftRight.write(LrAngles);
    delay(1000);
  }


  for (LrAngles=100;LrAngles>90;LrAngles=LrAngles-1);
  {
    Serial.print(" Turning back..., next angle is : ");Serial.println(LrAngles);
    delay(200);
    ServoLeftRight.write(LrAngles);
    delay(1000);
  }



}