How to print a 64 page book on 4 a4 sheets

a7booklet.py

front = 16,1,14,3,12,5,10,7
back = 4,13,2,15,8,9,6,11

for x in range(4):
    print("Sheet", x + 1)
    for side in front, back:
        print(',\t'.join(str(p + 16*x) for p in side))
    print()

# Sheet 1
# 16, 1,  14, 3,  12, 5,  10, 7
# 4,  13, 2,  15, 8,  9,  6,  11
#
# Sheet 2
# 32, 17, 30, 19, 28, 21, 26, 23
# 20, 29, 18, 31, 24, 25, 22, 27
#
# Sheet 3
# 48, 33, 46, 35, 44, 37, 42, 39
# 36, 45, 34, 47, 40, 41, 38, 43
#
# Sheet 4
# 64, 49, 62, 51, 60, 53, 58, 55
# 52, 61, 50, 63, 56, 57, 54, 59