import pygame
from pygame.locals import *
import sys

pygame.init()

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

mySurface = pygame.Surface((50,50))
mySurface.fill((0,255,0))

mySurface2 = pygame.Surface((100, 50))
mySurface2.fill((0, 255, 0))

while True :
    events = pygame.event.get()
    for event in events:
        if event.type == pygame.QUIT :
            pygame.quit()
            sys.exit()

    displaysurface.blit(mySurface, (50,50))
    displaysurface.blit(mySurface2, (50,100))


    pygame.display.update()