77*:9*:2/*+3/
59*:*28**59*-1+

77*:9*:2/*+3/
2589***1-59**1+

2589 720 0

1234 24 8

def shl(n, i): return n << i if i > 0 else n >> -i
def rotl(n, i, w): return (shl(n, i%w) ^ shl(n, -(-i%w))) % 2**w

def lab(n):
    n = (n << 1) | 1
    w = n.bit_length()
    e = 0
    p = w - 1
    d = -1
    i = 1

    while True:
        if p == e: return i
        dr = (-1)**bool(n & (1 << p))
        n = rotl(n, dr, w)
        p = (p + dr) % w
        e = (e + dr) % w
        if [d, p] in [[-1, 0], [1, w-1]]:
            d = -d
        p += d
        i += 1

def lab(n):
    n = (n << 1) | 1
    w = n.bit_length()
    p = e = w - 1
    d = -1
    i = 1

    while True:
        if e == 0: return i
        dr = (-1)**bool(n & (1 << e))
        p += dr
        if [d, p] in [[-1, 0], [1, w-1]]: d = -d
        p = (p + d) % w
        e = (e + d) % w
        i += 1

Jolf: «STOP!
Vitsy: '!POTS«'Z
Foo: "'!POTS«'Z"
JavaScript: alert`"'!POTS«'Z"`
Python 3: print("""alert`"'!POTS«'Z"`""")

>>> len("HHAAAAAAAAAAAAAAAAAHAHHAHHHHHAHAHAHHAAA") / len("ha ha")
7.8