#include<bits/stdc++.h>
using namespace std;

long long N,A,B,M,D,H;
string txt;
long long arr_cost[32];

int K;
string arrays[32];
vector<pair<int,int> > instr;

void solve()
{
    K=27;
    for(int i=0;i<K-1;i++) arrays[i]=char('a'+i);
    arrays[26]="_";
    int ts = txt.size();

    for(int i=0;i<ts;i++)
    {
        if(i==0)
        {
           if(txt[0]!='a')
            {
                if(txt[0]=='_') instr.push_back({4, 27});
                else instr.push_back({4, txt[0]-'a'+1});
            }
            instr.push_back({3,1});
        }
        else{
        if(txt[i]!=txt[i-1])
        {
            if(txt[i]=='_') instr.push_back({4, 27});
            else instr.push_back({4, txt[i]-'a'+1});
        }
        instr.push_back({3,1});}
    }
}

void read()
{
    cin>>N>>txt>>A>>B>>M>>D>>H;
    for(int i=1;i<28;i++) cin>>arr_cost[i];
}

void write()
{
    cout<<K<<endl;
    for(int i=0;i<K;i++) cout<<arrays[i]<<endl;
    int ts = instr.size();
    cout<<ts<<endl;
    for(pair<int,int> i : instr)
    {
        switch(i.first)
        {
            case 1: cout<<"cl"<<endl; break;
            case 2: cout<<"cr"<<endl; break;
            case 3: cout<<"w "<<i.second<<endl; break;
            case 4: cout<<"cd "<<i.second<<endl; break;
            case 5: cout<<"push"<<endl; break;
            case 6: cout<<"pop"<<endl; break;
        }
    }
}

int main()
{
    freopen("printing.in", "r", stdin); freopen("printing.out", "w", stdout);
    ios_base::sync_with_stdio(0);
    read();
    solve();
    write();
    return 0;
}