print len(list)
print list
r = list.get_random_index()
list.lower_index(0)
print list
list.lower_index(0)
print list
list.lower_index(4)
print list
list.rotate_index(0)
print list
size = len(list)
counts = []
for i in range(size):
counts.append(0)
SAMPLES = 100000
for i in range(SAMPLES):
r = list.get_random_index()
counts[r] += 1
for i in range(size):
print "%d : %f" % (i, float(counts[i]) / SAMPLES)
