> #include<stdio.h>
> #include<string.h>
> #include<stdlib.h>
> #include<math.h>
> struct out
> {
> 	int outc;
> 	int outn;
> };
> int fcmp(const void *a1,const void *a2)
> {
> 	if((*(struct out *)a2).outc>(*(struct out *)a1).outc)
> 		return 0;
> 		else return 1;
> }
> void main()
> {
> 	struct out outa[10000];
> 	char in[50],b[9];
> 	int n,m;
> 	scanf("%d",&n);
> 	int i,j,l,k;
> 	int g=0;
> 	for(i=0;i<n;i++)
> 	{
> 		m=0;
> 		scanf("%s",in);
> 		l=strlen(in);
> 		for(j=0;j<l;j++)
> 		{
> 			if(in[j]=='-') continue;
> 			if(in[j]<'Z'&&in[j]>='A')
> 			{
> 				if(in[j]>L'Q') in[j]--;
> 				m+=(in[j]-'A'+6)/3;
> 				m*=10;
> 				continue;
> 			}
> 			if(in[j]<='9'&&in[j]>='0')
> 			{
> 				m+=in[j]-'0';
> 				m*=10;
> 				continue;
> 			}
> 		}
> 		m/=10;
> 		for(j=0;j<g;j++)
> 		{
> 			if(m==outa[j].outc) 
> 			{
> 				outa[j].outn++;
> 				break;
> 			}
> 		}
> 		if(j==g) outa[g].outc=m,outa[g].outn=1,g++;
> 	}
> 	qsort(outa,g,sizeof(struct out),fcmp);
> 	k=0;
> 	for(i=0;i<g;i++)
> 		if(outa[i].outn>1)	
> 		{
> 			k++;
> 			for(j=0;j<4;j++)
> 			{
> 				b[7-j]='0'+outa[i].outc%10;
> 				outa[i].outc/=10;
> 			}
> 			b[3]='-';
> 			for(j=5;j<8;j++)
> 			{
> 				b[7-j]='0'+outa[i].outc%10;
> 				outa[i].outc/=10;
> 			}
> 			b[8]='\0';
> 			printf("%s %d\n",b,outa[i].outn);
> 		}
> 	if(k==0) printf("No duplicates.\n");
> }