#include <bits/stdc++.h>
#define all(x) (x).begin(),(x).end()
using namespace std;
using ll = long long;
using ld = long double;
//#define int ll
#define sz(x) ((int)(x).size())
using pii = pair<int,int>;
using tii = tuple<int,int,int>;
vector<int> S;
signed main() {
cin.tie(0) -> sync_with_stdio(0);
int n, m, q;
cin >> n >> m >> q;
S.resize(n);
for(auto &x : S) cin >> x;
ll sum = 0;
for(int i = 0; i < n - 1; i++)
sum += (S[i] == S[i + 1]) * S[i];
S.erase(unique(all(S)), end(S));
for(int i = 0; i < n - 2; i++) {
if(S[i] == S[i + 2] && S[i + 1] == 0)
sum--;
}
cout << sum << '\n';
}
/**
nu toate numerele mari sunt semne de ceva bine
-- Si pe mine m-a surprins sa fiu sincer, dar pbn cautati pe net, sunt sigur ca se gasesc mai multe exemple
*/
