For this Question: Given N candies of different colors. Find the number of different ways of selecting 1 or more candies such that the number of candies you select is not A or B.
<b>Note:</b>Two selecting ways are different if there is a candy of a particular color in only one of the selections.
As the answer can be the huge print answer 10<sup>9</sup>+7.The input contains three integers: N, A, and B.

</b>Constratins:</b>
3 &le; N &le; 10<sup>9</sup>
1 &le; A < B &le; min(N, 10<sup>5</sup>)Print answer 10<sup>9</sup>+7.Sample Input:
4 2 4

Sample Output:
8

<b>Explanation:</b>
(1) (2) (3) (4) (1, 2, 3) (1, 3, 4) (1, 2, 4) (2, 3, 4), I have written this Solution Code: MOD = int(1e9 + 7)


def modpow(a: int, n: int) -> int:
    if n == 0:
        return 1
    elif n == 1:
        return a % MOD
    elif n % 2 == 1:
        return (a * modpow(a, n - 1)) % MOD
    else:
        t = modpow(a, int(n / 2))
        return (t * t) % MOD


def modcmb(left: int, right: int) -> int:
    x, y = 1, 1
    for i in range(0, right):
        x = (x * (left - i)) % MOD
        y = (y * (i + 1)) % MOD
    return (x * modpow(y, MOD - 2)) % MOD


input_str = input().split()
n = int(input_str[0])
a = int(input_str[1])
b = int(input_str[2])

ans = modpow(2, n) - 1
c = modcmb(n, a)
d = modcmb(n, b)
ans = (ans - c + MOD) % MOD
ans = (ans - d + MOD) % MOD

print(ans)
, In this Programming Language: Python, Now tell me if this Code is compilable or not?