import random
ll = [2, 5, 3, 6, 6, 7]

def print_list_random(l):
    if not l:
        return
    i = random.randint(0, len(l) - 1)
    print(l[i])
    print_list_random(l[:i]) # left side
    print_list_random(l[i + 1:]) # right side

print_list_random(ll)