#include<bits/stdc++.h>
using namespace std;
#define overload4(a, b, c, d, name, ...) name
#define REP0(n) for(long long _abcde12345 = 0; _abcde12345 < (long long)(n); ++_abcde12345)
#define REP1(i, n) for(long long i = 0; i < (long long)(n); ++i)
#define REP2(i, a, b) for(long long i = (a); i < (long long)(b); ++i)
#define REP3(i, a, b, c) for(long long i = (a); i < (long long)(b); i += (c))
#define rep(...) overload4(__VA_ARGS__, REP3, REP2, REP1, REP0)(__VA_ARGS__)
#define rrep(i, a, b) for(long long i = (a); i >= (long long)(b); --i)
#define each_for(...) for (auto&& __VA_ARGS__)
#define each_const(...) for (const auto& __VA_ARGS__)
#define drop(x) { cout << (x) << endl; return; }
template<class T,class S>inline bool chmax(T& a,const S& b){return (a < b ? a = b, 1 : 0);}
template<class T,class S>inline bool chmin(T& a,const S& b){return (a > b ? a = b, 1 : 0);}
/************************************************************************************************/

void solve();

int main()
{
	cin.tie(nullptr)->sync_with_stdio(false);
	cout<<fixed<<setprecision(15);

	int T=1;

	//cin>>T;
	
	rep(T)solve();

	return 0;
}

/////////////////////////////////////////////////////////////

long long N,M,B;
long long A[1<<17];
long long dp[1<<17];

long long modpow(long long a,long long b)
{
	long long ret=1;
	while(b>0)
	{
		if(b&1)ret=ret*a%B;
		a=a*a%B;
		b>>=1;
	}
	return ret;
}

void solve()
{
	cin>>N>>M>>B;
	M%=B;
	rep(i,N)cin>>A[i];
	dp[0]=1;
	rep(i,1,N+1)
	{
		dp[i]=dp[i-1]*modpow(M,A[i-1])%B;
		(dp[i]+=dp[i-1])%=B;
	}
	cout<<dp[N]<<endl;
}