x = [5, 4, 3, 2, 1]
x.reverse()
print(x)m = ['July', 'September', 'December']
n = m[1]
print(n)m = {'m', 'n', 'o', 'p'}
if 'n' in m:
print('n', end=' ')m = [25, 34, 70, 63]
n = str(m[1]) + str(m[2])
print(n)points = [[1, 2], [3, 1.5], [0.5, 0.5]]
points.sort()
print(points)