Jubilee

from math import comb, factorial, perm

x =  input().split(" ")
n = int(x[0])
m = int(x[1])

mod = 10**9 +7

res = (m * (m-1)) % mod

for i in range(1,n):
    res = (res*(m - 1 + (m-2)*(m-2))) % mod


print(res)

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED

Test 11

Verdict: ACCEPTED

Test 12

Verdict: ACCEPTED

Test 13

Verdict: ACCEPTED

Test 14

Verdict: ACCEPTED