POJ 2608

 #include<iostream>
 #include<stdio.h>
 #include<string>
 #include<set>
 using namespace std;

 int main()
 {
     //freopen("acm.acm","r",stdin);
     set<char> coll[];

     coll[].insert('B');
     coll[].insert('F');
     coll[].insert('P');
     coll[].insert('V');

     coll[].insert('C');
     coll[].insert('G');
     coll[].insert('J');
     coll[].insert('K');
     coll[].insert('Q');
     coll[].insert('S');
     coll[].insert('X');
     coll[].insert('Z');

     coll[].insert('D');
     coll[].insert('T');

     coll[].insert('L');

     coll[].insert('M');
     coll[].insert('N');

     coll[].insert('R');
     int i;
     int j;
     int tem;
     string s;
     //set<char>::iterator pos;
     while(cin>>s)
     {
         tem = -;
         for(i = ; i < s.length(); ++i)
         {
             for(j = ; j <= ; ++j)
             {
                 if(coll[j].find(s[i]) != coll[j].end())
                 {
                     if(tem != j)
                     {
                         cout<<j;
                         tem = j;
                     }
                     break;
                 }

             }
             if(j == )
                 tem = -;
         }
         cout<<endl;
     }

 }