#include <bits/stdc++.h>
using namespace std;
const int N = 1000005;
int x,a[N],dp[N];
bool vis[N];
int main(){
ios::sync_with_stdio(0);cin.tie(0);
cin>>x;
for(int i=1;i<=x;i++)cin>>a[i];
vector<vector<int>>v;
int mx=-1;
for(int p=1;p<=x;p++){
int cur=0;
for(int j=1;j<=x;j++){
if(vis[j])continue;
dp[j]=1;
for(int i=1;i<j;i++){
if(vis[i])continue;
if(a[i]<a[j])
dp[j]=max(dp[i]+1,dp[j]);
}
cur=max(cur,dp[j]);
}
if(mx>cur)break;
mx=cur;
vector<int>nw;
for(int i=x;i>=1;i--){
if(!vis[i]&&dp[i]==cur){
cur--;
nw.push_back(i);
vis[i]=1;
}
}
reverse(nw.begin(),nw.end());
v.push_back(nw);
}
cout<<v.size()<<" "<<mx<<"\n";
for(auto i:v){
for(auto j:i)
cout<<j<<" ";
cout<<"\n";
}
return 0;
}
