from random import shuffle
def is_in_order(x):
    """prec: x is a homogeneous list of sortable items
    post: returns true if the list is in ascending order."""
    k = 0
    while k < len(x) -1:
        if x[k] > x[k+1]:
            return False
        k += 1
    return True
def bozo(x):
    while not is_in_order(x):
        shuffle(x)

x = [3,-2, 5, 7, 9, -10, 6, 1, 2]
bozo(x)
print(x)