polybius

#include <fstream>
#include <cstring>
using namespace std;
char s[1000001];

int main()
{
    char t[25];
    int p;
    ifstream f("polybius.in");
    f>>p>>t>>s;
    unsigned int L=strlen(s);
    ofstream g("polybius.out");
    if(p==1)
    {
        int n;
        int F[27]={0};
        for(unsigned int i=0;i<25;++i)
            n=t[i]-'A'+1,F[n]=(i/5+1)*10+i%5+1;
        for(unsigned int i=0;i<L;++i)
            g<<F[s[i]-'A'+1];
    }
    else
    {
        for(unsigned int i=0;i<L;i+=2)
            g<<t[(s[i]-'0'-1)*5+(s[i+1]-'0'-1)];
    }
    return 0;
}