import pygame, sys 
from pygame.locals import *

pygame.init()
displaysurface = pygame.display.set_mode((300, 300))


surface = pygame.Surface((200, 50))
surface.fill((0,255,0))

surface2 = pygame.Surface((200, 50))
surface2.fill((0,255,0))

pos = [175, 125]

while True:
    events = pygame.event.get()
    for event in events:
        if event.type == pygame.QUIT:
             pygame.quit()
             sys.exit()
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_RIGHT:
                pos[0] += 20
    displaysurface.blit(surface, (50, 50))
    displaysurface.blit(surface2, (50, 150))
    pygame.display.update()