老鼠打洞python

thickness = int(input())
days = 1
big_mouse = 1
total_big = 1
small_mouse = 1
total_small = 1
while True:
    days += 1
    big_mouse = big_mouse * 2
    total_big += big_mouse
    small_mouse = small_mouse * 0.5
    total_small += small_mouse
    if total_big + total_small >= thickness:
        break

print(days)
print("{:.1f} {:.1f}".format(total_small, total_big))