#include <bits/stdc++.h>
using namespace std;
typedef pair<int, int> pi;
typedef long long lint;
int n, m, k;
lint a, b, c, t, s[3005];
lint loc[3005];
int main(){
cin >> n >> m >> k;
cin >> a >> b >> c >> t;
for(int i=1; i<=m; i++){
cin >> s[i];
s[i]--;
if(t - b * s[i] < 0) loc[i] = -1;
else loc[i] = (t - b * s[i]) / a;
}
for(int i=1; i<m; i++) loc[i] = min(loc[i], s[i+1] - s[i] - 1);
loc[m] = min(loc[m], 0ll);
for(int i=0; i<k-m; i++){
lint val = 0, pos = -1;
for(int j=1; j<m; j++){
if(t - s[j] * b - (loc[j] + 1) * c < 0) continue;
lint st = loc[j] + 1;
lint ed = min(s[j+1] - s[j] - 1,
(t - s[j] * b - st * c) / a + st);
if(val < ed - st + 1){
val = ed - st + 1;
pos = j;
}
}
if(val > 0){
loc[pos] += val;
}
}
lint ans = 0;
for(int i=1; i<=m; i++) ans += loc[i] + 1;
cout << ans-1;
}
