How to solve the problem with the calculation of coefficients?

Question

Python

How to write code correctly so that the program would count from 1 to 6000, one coefficient for each unit, let's say 1 = 0.4. And from 6000 to 10000 it is these 4000 thousand according to another coefficient, let's say 1 = 0.6?

Answer 1

def some_calc_func(param):
    coef = 0.4
    if 6000 < param < 10000:
        coef = 0.6
    # здесь код вычислений, возвращается результат перемножения, к примеру
    return coef * param
 
for i in range(1, 10001):
    print(some_calc_func(i))

If you want the result to be 6000 * 0.4 + 1000 * 0.6 at 7000 , then:

COEF = 0.4
INC_COEF = 0.6
INC_COEF_FACTOR = 6000

def calc_result(value):
    if value > INC_COEF_FACTOR:
        return (value - INC_COEF_FACTOR) * INC_COEF + INC_COEF_FACTOR * COEF
    return value * COEF

Answer 2

2 rounds one after the other

for i in range(1, 6000):
    coefficient = 0.4
for i in range(6000, 10001):
    coefficient = 0.6

Answer 3

The process loops. Tell me what I wrote wrong please.
my_input = input ('xxx')
for my_input in range(0, 6000):
coefficient = 0.4;
for my_input in range(6001, 10000):
coefficient = 0.6;
print(my_input * coefficient)