#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL)
#define pb push_back
#define endl '\n'
#define conts continue
#define sz(a) (int)a.size()
#define all(a) a.begin(),a.end()
#define rall(a) a.rbegin(),a.rend()
#define ff first
#define ss second
#define rep(i,n) for(int i = 0; i < n; ++i)
#define rep1(i,n) for(int i = 1; i <= n; ++i)
#define rev(i,s,e) for(int i = s; i >= e; --i)
#define trav(i,a) for(auto &i : a)
template<typename T>
void amin(T &x, T y){
x = min(x,y);
}
template<typename T>
void amax(T &x, T y){
x = max(x,y);
}
template<typename A,typename B>
string to_string(pair<A,B> p);
string to_string(const string &s){
return "'"+s+"'";
}
string to_string(const char* s){
return to_string((string)s);
}
string to_string(bool b){
return b?"true":"false";
}
string to_string(vector<bool> v){
string res = "{";
rep(i,sz(v)){
res += to_string(v[i])+",";
}
if(res.back() == ',') res.pop_back();
res += "}";
return res;
}
template<typename A>
string to_string(A v){
string res = "{";
trav(x,v){
res += to_string(x)+",";
}
if(res.back() == ',') res.pop_back();
res += "}";
return res;
}
template<typename A,typename B>
string to_string(pair<A,B> p){
return "("+to_string(p.ff)+","+to_string(p.ss)+")";
}
#define debug(x) cout << "[" << #x << "]: "; cout << to_string(x) << endl
const int MOD = 1e9 + 7;
const int N = 1e5 + 5;
const int inf1 = 1e9 + 5;
const ll inf2 = (ll)1e18 + 5;
#include "paint.h"
int minimumInstructions(
int n, int m, int k, std::vector<int> a,
std::vector<int> sizes, std::vector<std::vector<int>> b) {
vector<bool> can(n);
rep(i,n){
if(i+m-1 >= n) break;
rep(x,m){
bool ok = true;
rep(l,m){
int j = (x+l)%m;
if(!binary_search(all(b[j]),a[i+l])){
ok = false;
break;
}
}
if(ok){
can[i] = 1;
break;
}
}
}
vector<int> bef(n,-1);
rep(i,n){
if(i) bef[i] = bef[i-1];
if(can[i]) bef[i] = i;
}
if(!can[0]){
return -1;
}
int pos = 0;
int ans = 1;
while(pos+m < n){
int nxt = bef[pos+m];
if(nxt == pos) return -1;
pos = nxt;
ans++;
}
return ans;
}
