<gh_stars>0
# for i in range(1, 10, 1):
#     print(1)


for i in range(20, -21, -5):
    print(i)

# for i in range(1, 10, 1):
#     print(1)


for i in range(20, -21, -5):
    print(i)
# for i in range(1, 10, 1): #     print(1)