#
# µû¶óÇÏ¸ç ¹è¿ì´Â ÆÄÀ̽ã°ú µ¥ÀÌÅÍ°úÇÐ(»ý´ÉÃâÆÇ»ç 2020)
# 8.6 ÁýÇÕÀÇ Ç׸ñ¿¡ Á¢±ÙÇÏ´Â ¿¬»ê, 207ÂÊ
#
numbers = {2, 1, 3}
if 1 in numbers: # 1À̶ó´Â Ç׸ñÀÌ numbers ÁýÇÕ¿¡ Àִ°¡ °Ë»ç
print("ÁýÇÕ ¾È¿¡ 1ÀÌ ÀÖ½À´Ï´Ù.")
numbers = {2, 1, 3}
for x in numbers:
print(x, end=" ")
for x in sorted(numbers):
print(x, end=" ")