ERROR AT THE END "{"

#include "FastLED.h"


#define DATA_PIN 
#define CLOCK_PIN

#define NUM_STRIPS 3
#define NUM_LEDS 50
CRGB leds[NUM_STRIPS][NUM_LEDS];

void setup() {
  FastLED.addLeds<WS2801,3,2>(leds[0], NUM_LEDS);
  FastLED.addLeds<WS2801,5,4>(leds[1], NUM_LEDS);
  FastLED.addLeds<WS2801,6,7>(leds[2], NUM_LEDS);

}

void loop() {
  // This outer loop will go over each strip, one at a time
  
    // This inner loop will go over each led in the current strip, one at a time
    for(int i = 0; i < NUM_LEDS; i++) {
      for(int x = 0; x < NUM_STRIPS; x++) {
        
             leds[x][i] = CRGB::White;
               // Show the leds
  	      FastLED.show();
              // now that we've shown the leds, reset the i'th led to black
	      leds[x][i] = CRGB::Black;
              // Wait a little bit before we loop around and do it again
	      delay(20);
	}

	// Now go in the other direction.  
	for(int i = NUM_LEDS-1; i >= 0; i--) {
        for(int x = 0; x < NUM_STRIPS; x++) {
		// Set the i'th led to red 
		leds[x][i] = CRGB::Blue;
		// Show the leds
		FastLED.show();
		// now that we've shown the leds, reset the i'th led to black
		leds[x][i] = CRGB::Black;
		// Wait a little bit before we loop around and do it again
		delay(20);
	}
     // First slide the led in one direction
	for(int i = 0; i < NUM_LEDS; i++) {
        for(int x = 0; x < NUM_STRIPS; x++) {
		// Set the i'th led to red 
		leds[x][i] = CRGB::Red;
		// Show the leds
		FastLED.show();
		// now that we've shown the leds, reset the i'th led to black
		leds[x][i] = CRGB::White;
		// Wait a little bit before we loop around and do it again
		delay(20);
	}

	// Now go in the other direction.  
	for(int i = NUM_LEDS-1; i >= 0; i--) {
        for(int x = 0; x < NUM_STRIPS; x++) {
		// Set the i'th led to red 
		leds[x][i] = CRGB::White;
		// Show the leds
		FastLED.show();
		// now that we've shown the leds, reset the i'th led to black
		leds[x][i] = CRGB::Red;
		// Wait a little bit before we loop around and do it again
		delay(20);
	}
// Now go in the other direction.  
	for(int i = NUM_LEDS-1; i >= 0; i--) {
        for(int x = 0; x < NUM_STRIPS; x++) {
		// Set the i'th led to red 
		leds[x][i] = CRGB::Red;
		// Show the leds
		FastLED.show();
		// now that we've shown the leds, reset the i'th led to black
		leds[x][i] = CRGB::White;
		// Wait a little bit before we loop around and do it again
		delay(20);
	}
     // First slide the led in one direction
	for(int i = 0; i < NUM_LEDS; i++) {
        for(int x = 0; x < NUM_STRIPS; x++) {
		// Set the i'th led to red 
		leds[x][i] = CRGB::Blue;
		// Show the leds
		FastLED.show();
		// now that we've shown the leds, reset the i'th led to black
		leds[x][i] = CRGB::Blue;
		// Wait a little bit before we loop around and do it again
		delay(20);
    }

}

//AN ERROR COMES AT THE END SAYING  "EXPECTED '}' AT THE END OF THE INPUT "   DON'T KNOW TO FIX