Rabbits

def nth_fibonacci_diff(a, b):
    if a == b:
        return 0

    fib_n_minus_2, fib_n_minus_1 = 0, 1
    temp_a, temp_b = 0, 0


    for i in range(b + 1):
        if i == 0:
            curr = 0
        elif i == 1:
            curr = 1
        else:
            curr = fib_n_minus_1 + fib_n_minus_2
            fib_n_minus_2, fib_n_minus_1 = fib_n_minus_1, curr

        if i == a - 1:
            temp_a = curr
        if i == b - 1:
            temp_b = curr

    return temp_b - temp_a

a, b = map(int, input().split())
print(nth_fibonacci_diff(a, b))

Test 1

Verdict: TIME LIMIT EXCEEDED

Test 2

Verdict: WRONG ANSWER

Test 3

Verdict: ACCEPTED

Test 4

Verdict: TIME LIMIT EXCEEDED

Test 5

Verdict: TIME LIMIT EXCEEDED

Test 6

Verdict: TIME LIMIT EXCEEDED

Test 7

Verdict: TIME LIMIT EXCEEDED

Test 8

Verdict: TIME LIMIT EXCEEDED

Test 9

Verdict: TIME LIMIT EXCEEDED

Test 10

Verdict: TIME LIMIT EXCEEDED

Test 11

Verdict: TIME LIMIT EXCEEDED

Test 12

Verdict: TIME LIMIT EXCEEDED

Test 13

Verdict: TIME LIMIT EXCEEDED

Test 14

Verdict: TIME LIMIT EXCEEDED

Test 15

Verdict: TIME LIMIT EXCEEDED

Test 16

Verdict: TIME LIMIT EXCEEDED

Test 17

Verdict: TIME LIMIT EXCEEDED

Test 18

Verdict: TIME LIMIT EXCEEDED

Test 19

Verdict: TIME LIMIT EXCEEDED

Test 20

Verdict: TIME LIMIT EXCEEDED

Test 21

Verdict: TIME LIMIT EXCEEDED

Test 22

Verdict: TIME LIMIT EXCEEDED

Test 23

Verdict: TIME LIMIT EXCEEDED