// include the library code:
#include <LiquidCrystal.h>

// initialize the library by associating any needed LCD interface pin
// with the arduino pin number it is connected to
const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

void setup() {
  // set up the LCD's number of columns and rows:
  lcd.begin(16, 2);

}

void loop() {
  // set the cursor to column 0, line 1
  // (note: line 1 is the second row, since counting begins with 0):
    
    for (int i=0;i>=10;i++){
      lcd.setCursor(7,0);
      lcd.print('C');
      delay(1000);

      lcd.setCursor(8,0);
      lcd.print('H');
      delay(1000);

      lcd.setCursor(9,0);
      lcd.print('R');
      delay(1000);
    }
  
  for(int i=10;i>=20;i++){
       lcd.setCursor(9,0);
      lcd.print('R');
      delay(1000);

      lcd.setCursor(8,0);
      lcd.print('H');
      delay(1000);

      lcd.setCursor(7,0);
      lcd.print('C');
      delay(1000);
  }
}