bifid

#include <fstream>
using namespace std;
ifstream in("bifid.in");
ofstream out("bifid.out");
struct cord {
    int x, y;
}f[26];
int c, mat[10005][2], v[20010], nr,
    cordx, cordy;
char ch, alf[6][6];
bool ok;

void citire()
{
    in >> c;
    for(int i = 1; i <= 5; ++i){
        in.get();
        for(int j = 1; j <= 5; ++j) {
            in.get(ch);
            f[ch - 'a'].x = i;
            f[ch - 'a'].y = j;
            alf[i][j] = ch;
        }
    }
}

void solve1()
{

    in.get();
    while(in.get(ch)) {
        mat[++nr][0] = f[ch - 'a'].x;
        mat[nr][1] = f[ch - 'a'].y;
    }

    for(int i = 0; i <= 1; ++i)
        for(int j = 1; j <= nr; ++j){
            if(ok == 0) {
                cordx = mat[j][i];
                ok = 1;
            }
            else if(ok == 1) {
                cordy = mat[j][i];
                out << alf[cordx][cordy];
                ok = 0;
            }
        }
}

void solve2()
{

    in.get();
    while(in.get(ch)) {
        v[++nr] = f[ch - 'a'].x;
        v[++nr] = f[ch - 'a'].y;
    }
    int mij = nr / 2;

    for(int j = 1; j <= mij; ++j) {
        out << alf[v[j]][v[j + mij]];
    }
}

int main()
{

    citire();
    if(c==1)
        solve1();
    else
        solve2();
    return 0;
}