#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
template <typename T>
using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template <typename T>
using ordered_multiset = tree<T, null_type, less_equal<T>, rb_tree_tag, tree_order_statistics_node_update>;
#define int int64_t
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define vi vector<int>
#define vii vector<vi>
#define ld long double
#define pii pair<int, int>
mt19937 mt(time(0));
namespace io
{
template <typename T, typename F>
istream &operator>>(istream &cin, pair<T, F> &pr)
{
cin >> pr.first >> pr.second;
return cin;
}
template <typename T, typename F>
ostream &operator<<(ostream &cout, pair<T, F> &pr)
{
cout << pr.first << ' ' << pr.second;
return cout;
}
template <typename T>
istream &operator>>(istream &cin, vector<T> &vec)
{
for (T &i : vec)
cin >> i;
return cin;
}
template <typename T>
ostream &operator<<(ostream &cout, vector<T> vec)
{
for (T i : vec)
cout << i << ' ';
return cout;
}
}
using namespace io;
const int M = 998244353;
vi f(2e5 + 5);
int pw(int x, int y, int p = M)
{
x %= p;
int res = 1;
while (y)
{
if (y & 1)
res = res * x % p;
x = x * x % p;
y /= 2;
}
return res;
}
int inv(int a, int p = M) { return pw(a, p - 2, p); }
int C(int n, int k)
{
if (k > n || k < 0)
return 0;
return f[n] * inv(f[n - k] * f[k]) % M;
}
void solve()
{
int h, w, n, a, b, c;
cin >> h >> w >> a >> b >> c >> n;
vector<pii> v(n);
cin >> v;
int d = (v[1].first - v[0].first) + (v[1].second - v[0].second);
int mx = max(v[1].second - v[0].second, v[1].first - v[0].first);
cout << min({mx * a + b + (d - mx) * c, c * d});
}
signed main()
{
f[0] = 1;
for (int i = 1; i <= 2e5; i++)
f[i] = f[i - 1] * i % M;
ios::sync_with_stdio(0);
cin.tie(0);
int t = 1;
// cin >> t;
while (t--)
solve(), cout << '\n';
return 0;
}
