<doocs>0509.Fibonacci Number_1.py
def fib( n: int) -> int:
    a, b = 0, 1
    for _ in range(n):
        a, b = b, a + b
    return a
def sample_funcname ( var_0 : int ) -> int :
    var_3 , var_5 = 0 , 1
    for var_7 in range ( var_0 ) :
        var_3 , var_5 = var_5 , var_3 + var_5
    return var_3
