import timeit

def m1():
    i = 0
    r = range(10000)
    for _ in r:
        i += 1

def m2():
    i = 0
    r = range(10000)
    for _ in r:
        if i < 9999:
            i += 1

def m3():
    i = 0
    r = range(10000)
    while i < 9999:
        i += 1

print(timeit.timeit(m1, number=2000))
print(timeit.timeit(m2, number=2000))
print(timeit.timeit(m3, number=2000))