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#include <bits/stdc++.h>

using namespace std;
int T[3100];
int T2[3100];
int Poz[3100];
int Wyk[3100];
int P[3100];
vector<vector<int> > O1;
vector<vector<int> > O2;
void zm(int a,int b){
    Poz[T[a]]=b;
    Poz[T[b]]=a;
    swap(T[a],T[b]);
    return;
}
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n;
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>T[i];
        T2[i]=T[i];
        Poz[T[i]]=i;
    }
    sort(T2+1,T2+n+1);
    vector<int> W;
    vector<int> W2;
    bool kon=true;
    while(1==1){
        W.clear();
        W2.clear();
            kon=true;
        for(int i=1;i<=n;i++){
                Wyk[i]=0;
            if(T[i]==T2[i]){
                P[i]=-1;
                continue;
            }
            kon=false;
            P[i]=Poz[T2[i]];
        }
        if(kon==true){
            break;
        }
        for(int i=1;i<=n;i++){
            //cout<<"y"<<i<<"\n";
            if(P[i]==-1){
                continue;
            }
            int ii=i;
            if(Wyk[ii]==1){
                continue;
            }
           // cout<<"st"<<ii<<" "<<P[ii]<<"\n";
            while(P[ii]!=-1 and Wyk[P[ii]]==0){
                //cout<<ii<<" "<<P[ii]<<"\n";
                if(Wyk[ii]==0){
                    W.push_back(ii);
                    W2.push_back(P[ii]);
                    Wyk[ii]=1;
                    Wyk[P[ii]]=1;
                    zm(ii,P[ii]);
                }
                ii=P[ii];
            }
        }
        O1.push_back(W);
        O2.push_back(W2);
       // for(int i=1;i<=n;i++){
       //     cout<<T[i]<<" ";
        //}
        //cout<<"\n";
    }
    cout<<O1.size()<<"\n";
    for(int j=0;j<O1.size();j++){
        cout<<O1[j].size()*2<<"\n";
        for(int i=0;i<O1[j].size();i++){
            cout<<O1[j][i]<<" ";
        }
        for(int i=O2[j].size()-1;i>=0;i--){
            cout<<O2[j][i]<<" ";
        }
        cout<<"\n";
    }
}