#include <iostream>
#include <fstream>
#include <string>

using namespace std;

char text[10000];
int slots[27];
char chars[27];

int char2slot(char ch)
{
    if (ch >= 'a' && ch <= 'z')
        return ch - 'a' + 1;
    if (ch == '_')
        return 0;
    exit(7);
}

void solve(const char* in_name, const char* out_name)
{
    int N, A, B, M, D, H, P[27];
    ifstream fin(in_name);
    fin >> N;
    if (N < 1 || N > 10000)
        exit(1);

    string s;
    fin >> s;

    fin >> A >> B >> M >> D >> H;
    if (A < 1 || A > 10000000)
        exit(2);
    if (B < 1 || B > 10000000)
        exit(3);
    if (M < 1 || M > 10000000)
        exit(4);
    if (D < 1 || D > 10000000)
        exit(5);
    if (H < 1 || H > 10000000)
        exit(6);
    for (int i = 0; i < 27; i++)
    {
        fin >> P[i];
        //if (P[i] > 1000000)
        //    exit(P[i]);
    }

    for (int i = 0; i < 27; i++)
    {
        slots[i] = -1;
        chars[i] = -1;
    }

    int slot = 0, c = s.size();
    for (int i = 0; i < c; i++)
    {
        char ch = s[i];
        int sl = char2slot(ch);
        if (slots[sl] == -1)
        {
            chars[slot] = ch;
            slots[sl] = slot++;
        }
    }

    ofstream fout(out_name);
    fout << slot << endl;
    for (int i = 0; i < slot; i++)
        fout << chars[i] << endl;
    fout << 2 * c << endl;
    for (int i = 0; i < c; i++)
    {
        char ch = s[i];
        int sl = char2slot(ch);
        fout << "cd " << slots[sl] + 1 << endl;
        fout << "w 1" << endl;
    }
}

int main()
{
    solve("printing.in", "printing.out");
    return 0;
}