def f(od,do,step):
    if (step<0):
        od,do = do,od
    for i in range(od,do,step):
        print(i)
f(2,20,-3)

d6379a7a65d495b089360bc1b0e1eb8d31c7b3df
<mask token>

def f(od, do, step):
    if step < 0:
        od, do = do, od
    for i in range(od, do, step):
        print(i)


<mask token>

def f(od, do, step):
    if step < 0:
        od, do = do, od
    for i in range(od, do, step):
        print(i)


f(2, 20, -3)

def f(od,do,step):
    if (step<0):
        od,do = do,od
    for i in range(od,do,step):
        print(i)
f(2,20,-3)
