// Slower C++ solution:
#include<bits/stdc++.h>



using namespace std;

#define mygc(c) (c)=getchar_unlocked()

#define mypc(c) putchar_unlocked(c)

void reader(int& x) { int k, m = 0; x = 0; for (;;) { mygc(k); if (k == '-') { m = 1; break; }if ('0' <= k&&k <= '9') { x = k - '0'; break; } }for (;;) { mygc(k); if (k<'0' || k>'9')break; x = x * 10 + k - '0'; }if (m) x = -x; }

void writer(int x, char c) { int s = 0, m = 0; char f[10]; if (x<0)m = 1, x = -x; while (x)f[s++] = x % 10, x /= 10; if (!s)f[s++] = 0; if (m)mypc('-'); while (s--)mypc(f[s] + '0'); mypc(c); }

void writerLn(int x) { writer(x, '\n'); }

#define rep(i,n)for(int i=0;i<n;i++)

vector<int>E[100000];

int u[200000], v[200000], r[200000], ans[200000], d[100000], cnt = 1;

char b[200000], ok[100000]{ 1 };

vector<int>que;



void bfs(int u) {

	que.emplace_back(u);

	while (!que.empty()) {

		int p = que.back(); que.pop_back();

		for (int v : E[p]) {

			if (d[v] > d[p] && !ok[v]) {

				ok[v] = 1; cnt++; que.emplace_back(v);

			}

		}

	}

}

int main() {

	int n, m, q; reader(n); reader(m); reader(q);

	rep(i, m) {

		reader(u[i]); reader(v[i]);

		u[i]--; v[i]--;

		E[u[i]].emplace_back(v[i]); E[v[i]].emplace_back(u[i]);

	}

	memset(d, -1, sizeof(d));

	d[0] = 0;

	deque<int>que;

	que.emplace_back(0);

	while (!que.empty()) {

		int p = que.front(); que.pop_front();

		for (int v : E[p]) {

			if (!~d[v]) {

				d[v] = d[p] + 1; que.emplace_back(v);

			}

		}

	}

	rep(i, m) {

		if (d[u[i]] > d[v[i]])swap(u[i], v[i]);

	}

	rep(i, n)E[i].clear();

	rep(i, q) {

		reader(r[i]); r[i]--;

		b[r[i]] = 1;

	}

	rep(i, m) {

		if (!b[i]) {

			if (d[v[i]] > d[u[i]]) {

				E[u[i]].emplace_back(v[i]);

			}

		}

	}

	bfs(0);

	for (int i = q - 1; i >= 0; i--) {

		ans[i] = n - cnt;

		if (d[v[r[i]]] > d[u[r[i]]] && !ok[v[r[i]]]) {

			E[u[r[i]]].emplace_back(v[r[i]]);

			if (ok[u[r[i]]]) {

				cnt++; ok[v[r[i]]] = 1;

				bfs(v[r[i]]);

			}

		}

	}

	rep(i, q)writerLn(ans[i]);

}

// Faster C++ solution for the same problem (measured speedup: 1.1174048143858375x):
#include<bits/stdc++.h>

#define rep(i,n)for(int i=0;i<(n);i++)

#define mygc(c) (c)=getchar_unlocked()

#define mypc(c) putchar_unlocked(c)

void reader(int& x) { int k, m = 0; x = 0; for (;;) { mygc(k); if (k == '-') { m = 1; break; }if ('0' <= k&&k <= '9') { x = k - '0'; break; } }for (;;) { mygc(k); if (k<'0' || k>'9')break; x = x * 10 + k - '0'; }if (m) x = -x; }

void writer(int x, char c) { int s = 0, m = 0; char f[10]; if (x<0)m = 1, x = -x; while (x)f[s++] = x % 10, x /= 10; if (!s)f[s++] = 0; if (m)mypc('-'); while (s--)mypc(f[s] + '0'); mypc(c); }

using namespace std;

typedef pair<int, int>P;



vector<P>E[100000];

int l[100000], d[100000], b[100000], cnt[200001], u[200000], v[200000], r[200000], que[100000];

int main() {

	int n, m, q; reader(n); reader(m); reader(q);

	rep(i, m) {

		reader(u[i]); reader(v[i]); u[i]--; v[i]--; r[i] = q;

		l[u[i]]++; l[v[i]]++;

	}

	rep(i, n)E[i].reserve(l[i]), l[i] = 0;

	rep(i, q) {

		int a; reader(a); r[a - 1] = i;

	}

	rep(i, m) {

		E[u[i]][l[u[i]]++] = P(v[i], r[i]);

		E[v[i]][l[v[i]]++] = P(u[i], r[i]);

	}

	d[0] = 1; b[0] = q;

	int s = 0, g = 1;

	while (s != g) {

		int p = que[s++];

		rep(i, l[p]) {

			P v = E[p][i];

			if (d[v.first] == 0) {

				d[v.first] = d[p] + 1; que[g++] = v.first;

			}

			if (d[v.first] == d[p] + 1)

				b[v.first] = max(b[v.first], min(b[p], v.second));

		}

	}

	rep(i, n)cnt[b[i]]++;

	int ans = 0;

	rep(i, q) {

		ans += cnt[i];

		writer(ans, '\n');

	}

}