Source Code
#include <iostream>
#include <string>
#include <map>
#include <utility>
using namespace std;

int main()
{
	map<string,int> database;
	map<string,int>::iterator iter;
	string current;
	string newdata;
	char temp[2];
	int counter;
	bool flag=0;
	temp[1]=0;
	cin>>counter;
	while(counter--){
		cin>>current;
		newdata.assign("");
		for(int i=0;i<current.length();++i){
			switch(current[i])
			{
				case '0':
					temp[0]='0';
					newdata.append(temp);
					break;
				case '1':
					temp[0]='1';
					newdata.append(temp);
					break;
				case 'A':
				case 'B':
				case 'C':
				case '2':
					temp[0]='2';
					newdata.append(temp);
					break;
				case 'D':
				case 'E':
				case 'F':
				case '3':
					temp[0]='3';
					newdata.append(temp);
					break;
				case 'G':
				case 'H':
				case 'I':
				case '4':
					temp[0]='4';
					newdata.append(temp);
					break;
				case 'J':
				case 'K':
				case 'L':
				case '5':
					temp[0]='5';
					newdata.append(temp);
					break;
				case 'M':
				case 'N':
				case 'O':
				case '6':
					temp[0]='6';
					newdata.append(temp);
					break;
				case 'P':
				case 'R':
				case 'S':
				case '7':
					temp[0]='7';
					newdata.append(temp);
					break;
				case 'T':
				case 'U':
				case 'V':
				case '8':
					temp[0]='8';
					newdata.append(temp);
					break;
				case 'W':
				case 'X':
				case 'Y':
				case '9':
					temp[0]='9';
					newdata.append(temp);
					break;
				default:
					break;
			}
			
			flag=0;
			for(iter=database.begin();iter!=database.end();++iter)
			{
				if(iter->first==newdata)
				{
					iter->second++;
					flag=1;
				}
			}
		}
		if(!flag){
				database.insert(make_pair<string,int>(newdata,1));
			}		
	}
	flag=0;
	for(iter=database.begin();iter!=database.end();++iter)
	{
		if(iter->second>1)
		{
			flag=1;
			cout<<iter->first[0]<<iter->first[1]<<iter->first[2];
			cout<<"-";
			cout<<iter->first[3]<<iter->first[4]<<iter->first[5]<<iter->first[6];
			cout<<" "<<iter->second<<endl;
		}
		
	}
	if(!flag){cout<<"No duplicates."<<endl;}
	

	return 0;
}