#include<bits/stdc++.h>
using namespace std;
using ll=long long;
int main()
{
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	map<array<int,3>,int> Mp;
	int a,b,c;
	cin>>a>>b>>c;
	ll ans=2ll*a*b+2ll*b*c+2ll*a*c;
	int n;
	cin>>n;
	while(n--)
	{
		int x,y,z;
		cin>>x>>y>>z;
		for(int dx=-1;dx<=1;dx+=2)
		for(int dy=-1;dy<=1;dy+=2)
		for(int dz=-1;dz<=1;dz+=2)
		{
			int nx=x+dx,ny=y+dy,nz=z+dz;
			if(nx<0||ny<0||nz<0||nx>=a||ny>=b||nz>=c||Mp[{nx,ny,nz}])
				ans--;
			else
				ans++;
		}
		Mp[{x,y,z}]=1;
	}
	cout<<ans<<endl;
	return 0;
}