> # include <stdio.h>
> # include<string.h>
> # include<ctype.h>
> #define MAXN 100004
> #define MAXM 7
> #define MAXHASHVALUE 10000004
> static unsigned int hashTable[MAXHASHVALUE];
> static int mapValue[]=
>     {2,2,2,3,3,3,4,4,4,5,5,5,6,6,6,0,7,7,7,8,8,8,9,9,9};
> 
> int main()
> {
>     int i,j,n,len = 0,sum,num = 0;
> 
>     char str[MAXN] = {NULL};
>     scanf("%d",&n);
>     for (i = 0;i < n;i++)
>     {
>         scanf("%s",str);
> 		sum = 0;
>         for (j = 0,len = strlen(str);j < len ;j++)
>         {
>             if (isdigit(str[j]))
>                 sum = sum*10 + str[j] - '0';
>             else if (isupper(str[j]))
>                 sum = sum*10 + mapValue[str[j]-'A'];
>         }
>         hashTable[sum] ++;
>     }
> 
>     for (int m=0;m<MAXHASHVALUE;m++)
>     {
>         if (hashTable[m] > 1)
>         {
>            num ++;
>            printf("%d-%d %d\n",m/10000,m%10000,hashTable[m]);
>         }
>     }
>     if(num == 0)
>         printf("No duplicates.\n");
> 	return 0;
> }