def exp(a,b,p):
    ans,mul,div=1,a,1
    for i in range(70):
        if b//div%2==1:
            ans*=mul
            ans%=p
        mul=mul**2%p
        div*=2
    return ans%p

N,M,B=map(int,input().split())
A=list(map(int,input().split()))
ans=1
for i in range(N):
    ans+=ans*exp(M,A[i],B)
    ans%=B
print(ans)