def Matprod(A, B, mod, N):
    temp = [0] * N*N
    for i in range(N):
        for j in range(N):
            ij = i * N + j
            for k in range(N):
                temp[ij] += A[i*N+k] * B[k*N+j]
                temp[ij] %= mod
    return temp

def Matpow_Linear(A, M, mod, N):
    Mat = [0] * N*N
    for i in range(N):
        Mat[i*N+i] = 1
         
    while M:
        if M & 1:
            Mat = Matprod(Mat, A, mod, N)
        A = Matprod(A, A, mod, N)
        M >>= 1
    return Mat  

C, N, M = map(int, input().split())
mod = 10 ** 9 + 7
inv = pow(C, mod-2, mod)
a1 = (C - 1) * inv % mod
a2 = (C - 1) ** 2 * inv % mod
A = [inv, 0, 0, a2,
     1, 0, 0, 0,
     0, a1, a1, 0,
     0, 0, 1, 0]

A = Matpow_Linear(A, N - 1, mod, 4)
p = (A[0] * inv + A[1])%mod
ans = 1 - pow(1 - p, M, mod)
print(ans%mod)