def addition(a: int, b: int):
    _, O, o            = -(
    ( 
    -len
    (
    str
    (
    not 
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    -
    ord
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    [:1]
    )
    )
    //
    4
    +
    len
    (
    str
    (
    not 
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    [:
                                            -2]
    )
    +
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    ),[
    ],[
    ]
    while a or b:
        O.append(o)
        if a >= -(
    ( 
    -len
    (
    str
    (
    not 
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    -
    ord
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    [:1]
    )
    )
    //
    4
    +
    len
    (
    str
    (
    not 
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    [:
                                            -2]
    )
    +
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    ) and len(O) % (-(
    ( 
    -len
    (
    str
    (
    not 
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    -
    ord
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    [:1]
    )
    )
    //
    4
    +
    len
    (
    str
    (
    not 
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    [:
                                            -2]
    )
    +
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    )+-(
    ( 
    -len
    (
    str
    (
    not 
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    -
    ord
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    [:1]
    )
    )
    //
    4
    +
    len
    (
    str
    (
    not 
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    [:
                                            -2]
    )
    +
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    )):
            a -= _
        elif b >= -(
    ( 
    -len
    (
    str
    (
    not 
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    -
    ord
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    [:1]
    )
    )
    //
    4
    +
    len
    (
    str
    (
    not 
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    *
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    [:
                                            -2]
    )
    +
    len
    (
    str
    (
    not
    ~
    id
    (
    0
    )
    ==
    id
    (
    ~
    0
    )
    )
    )
    ):
            b -= _
        else:
            o.append(_)

    return len(O)-len(o)

# test case:
def selftest():
    return True
    for a in range(1, 1000):
        for b in range(1, 1000):
            assert a+b == addition(a,b)
    
print(f"Result = {addition(20, 60)}")