()
a = [bool(f==f) for _ in range(10)]
a = [bool(f==f) for _ in range(10)]
a = [ bool ( f == f ) for _ in range ( 10 ) ]
def bench_R3():
    "a = [bool(f==f) for _ in range(10)]"
    f = x + y + z
    a = [bool(f == f) for _ in range(10)]
def bench_R3 ( ) : f = x + y + z a = [ bool ( f == f ) for _ in range ( 10 ) ]