---

import pygame

pygame.init()

screen = pygame.display.set_mode((600, 400))
pygame.display.set_caption("Солнце на синем фоне")
clock = pygame.time.Clock()

sun_x = 300
sun_y = 200
speed = 3

while True:
    clock.tick(60)

    for i in pygame.event.get():
        if i.type == pygame.QUIT:
            exit()

    keys = pygame.key.get_pressed()
    if keys[pygame.K_LEFT]:
        sun_x -= speed
    if keys[pygame.K_RIGHT]:
        sun_x += speed
    if keys[pygame.K_UP]:
        sun_y -= speed
    if keys[pygame.K_DOWN]:
        sun_y += speed

    sun_x = max(40, min(560, sun_x))
    sun_y = max(40, min(360, sun_y))

    screen.fill((0, 100, 255))
    pygame.draw.circle(screen, (255, 255, 0), (sun_x, sun_y), 40)
    pygame.display.update()