//#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4.1,sse4.2,avx,avx2,popcnt,tune=native")
//
//#include <immintrin.h>
//#include <emmintrin.h>

#include <bits/stdc++.h>
//#pragma GCC optimize("O2")
#define vi vector<int>
#define pii pair<int, int >
#define mp make_pair
#define fi first
#define se second
#define pb push_back
#define LL long long
#define rep(i,a,n) for (int i=a;i<=n;i++)
#define per(i,a,n) for (int i=n;i>=a;i--)
#define all(x) (x).begin(), (x).end()
#define all2(x,n) (x+1), (x+1+n)
#define sz(x) ((int)(x).size())
#define mod(x) ((x)%MOD)
#define debug(x) cerr<<#x<<" : "<<x<<endl
#define mt make_tuple
#define eb emplace_back
#define o(X) (1<<(X))
#define oL(X) (1LL<<(X))
#define contain(S,X) (((S)&o(X))!=0)
#define containL(S,X) (((S)&oL(X))!=0)
using namespace std;
const int INF=0x3f3f3f3f,N=1e6+5,MOD=998244353;
const LL INF_LL=0x3f3f3f3f3f3f3f3fLL;
inline int getplc(int x,int y) { return (x>>y)&1; }
template<typename T>
T square(T x) {return x*x;}
LL qpow(LL a,LL b=MOD-2,LL _MOD=MOD){
	LL res=1;
	for(;b;b>>=1,a=a*a%_MOD){
		if(b&1)res=res*a%_MOD;
	}
	return res;
}
// Smax
//int Smax() { return -INF; }
template <typename T>
T Smax(T x) { return x; }
template<typename T, typename... Args>
T Smax(T a, Args... args) { return max(a, Smax(args...)); }
// Smin
template <typename T>
T Smin(T x) { return x; }
template<typename T, typename... Args>
T Smin(T a, Args... args) { return min(a, Smin(args...)); }
template <typename T>
// erro
#define errorl(args...) { string _s = #args; replace(_s.begin(), _s.end(), ',', ' '); stringstream _ss(_s); istream_iterator<string> _it(_ss); errl(_it, args); }

void errl(istream_iterator<string> it) {}
template<typename T, typename... Args>
void errl(istream_iterator<string> it, T a, Args... args) {
	cerr << *it << " = " << a << endl;
	errl(++it, args...);
}

#define error(args...) { string _s = #args; replace(_s.begin(), _s.end(), ',', ' '); stringstream _ss(_s); istream_iterator<string> _it(_ss); err(_it, args); cerr<<endl;}
void err(istream_iterator<string> it) {}
template<typename T, typename... Args>
void err(istream_iterator<string> it, T a, Args... args) {
	cerr << *it << "=" << a << " # ";
	err(++it, args...);
}
void Solve();
int main() {
#ifndef ONLINE_JUDGE
//	freopen("in.txt","r",stdin);
//    freopen("o1.txt","w",stdout);
#endif
	ios::sync_with_stdio(false);cin.tie(0),cout.tie(0);
	Solve();
	return 0;
}

//////////////////////////////////////////////////////////////////

int l[N],r[N],id[N];
int n;
int a[N],s[N],pre[N],ans[N];
void add(int x,int y){
  for(;x<=n;x+=x&-x)s[x]+=y;
}
int ask(int x){
  int res=0;
  for(;x;x-=x&-x)res+=s[x];
  return res;
}
void Solve(){
  int q;
  cin>>n>>q;
  rep(i,1,n){
    cin>>a[i];
  }
  rep(i,1,q){
    cin>>l[i]>>r[i];
    id[i]=i;
  }
  sort(id+1,id+1+q,[&](int a,int b){
    return r[a]<r[b];
  });
  int r=1;
  rep(i,1,n){
    if(pre[a[i]])add(pre[a[i]],-1);
    add(i,1);
    pre[a[i]]=i;
//    error(i);
//    rep(j,1,n)error(j,ask(j));
    while(r<=q&&::r[id[r]]<=i){
//      error(i,l[id[r]],::r[id[r]]);
      ans[id[r]]=ask(i)-ask(l[id[r]]-1);
      r++;
    }
  }
  rep(i,1,q){
    cout<<ans[i]<<'\n';
  }
  
}
#include <bits/stdc++.h>
using namespace std;

#define int long long
#define itn int
#define For(i, a, b) for (int i = (a); i <= static_cast<int>(b); i++)
#define Forr(i, a, b) for (int i = (a); i >= static_cast<int>(b); i--)
#define rep(i, n) For(i, 0, n - 1)
#define repall(i, arr) for (auto& i : (arr))
#define all(x) (x).begin(), (x).end()
#define pb push_back
#define dump(x) cerr << #x << " = " << (x) << '\n'
#define dump2(x, y) \
    cerr << #x << " = " << (x) << " " << #y << " = " << (y) << '\n'
#define SZ(x) ((int)(x).size())
#define bit(n) (1LL << (n))
constexpr int MOD = 1e9 + 7;

template <typename T>
using pq = priority_queue<T>;
template <typename T>
using pqr = priority_queue<T, vector<T>, greater<T>>;
const int INF = LLONG_MAX / 2;
using P = pair<int, int>;
using vec = vector<int>;
template <typename T>
using mat = vector<vector<T>>;

// clang-format off
template <typename T1, typename T2>
ostream& operator<<(ostream& stream, const pair<T1, T2>& p) { return stream << p.first << "," << p.second; }
template <typename T>
void print(const vector<T> vec) { rep (i, vec.size() - 1) cout << vec[i] << ' '; cout << vec[vec.size() - 1] << '\n'; }
template <typename Arg>
void print(const Arg arg) { cout << arg << '\n'; }
template <typename Head, typename... Args>
void print(const Head head, const Args... args) { cout << head << " "; print(args...); }
template <typename T, typename U>
void init(vector<T>& v, vector<U>& w) { rep (i, v.size()) cin >> v[i] >> w[i]; }
template <typename T>
void init(vector<T>& v) { rep (i, v.size()) cin >> v[i]; }
template <typename T>
T sum_(vector<T> vec, T init = 0) { return std::accumulate(all(vec), T(init)); }
template<typename T>
bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } return false; }
template<typename T>
bool chmin(T& a, const T& b) { if (a > b) { a = b; return true; } return false; }
template <typename T>
int index(const T& vec, const typename T::iterator it) { return distance(vec.begin(), it); }
template <typename T = int>
mat<T> mmat(int n, int m=0) { return mat<T>(n, vector<T>(m)); }
template <typename T = int>
vector<T> ivec(int n) { vector<T> v(n); init(v); return v; }
// clang-format on

void yn(bool tf) { print(tf ? "Yes" : "No"); }
void YN(bool tf) { print(tf ? "YES" : "NO"); }

int gcd(int a, int b) { return b ? gcd(b, a % b) : a; }
// -------------------------------------------------------------------
// sort 1 2 3 4
// pqr 1 2 3 must impl >

signed main() {
    cin.tie(0), cout.tie(0), ios::sync_with_stdio(false);
    int a, b;
    cin >> a >> b;
    a--, b--;
    mat<char> grid = mmat<char>(100, 100);
    rep (i, 50)
        rep (j, 100)
            grid[i][j] = '.';
    rep (i, 50)
        rep (j, 100)
            grid[i + 50][j] = '#';

    rep (i, a) {
        int row = i / 50 * 2 + 51;
        int col = (i % 50) * 2;
        grid[row][col] = '.';
    }
    rep (i, b) {
        int row = i / 50 * 2;
        int col = (i % 50) * 2;
        grid[row][col] = '#';
    }

    print(100, 100);
    rep (i, 100) {
        rep (j, 100)
            cout << grid[i][j];
        cout << endl;
    }

    return 0;
}
