#include <iostream>  #include <string>     using namespace std;      void process(string str)   {     //各字符串的下標即為其對應的阿拉伯數字     char *ch[]={"zero","one","two","three","four","five","six","seven","eight","nine","double"};   char *out[100];//存儲結果集    int f=0;   int i,j,k;       string substr;     int len=str.length();    int flag=0;//判斷double出現   int flag2=0;//判斷內循環有無break    for(i=0;i<len;i++)     {      if(flag2)       break;     else if(str[i]<97 || str[i]>122)//非字母字符     {       out[f++]="error";       break;     }     else{       //可以看出拼音最短為3個字符，最長為6個字符         for(j=i+2;j<len&&(j-i)<6;j++)         {           substr=str.substr(i,j-i+1);           if(!substr.compare(ch[10]))//出現double         {           if(i==len-6)//最后一個double           {             out[f++]="error";             flag2=1;             break;           }else if(flag){//連續兩個double             out[f++]="error";             flag2=1;             break;           }else             flag=1;         }         else{           for(k=0;k<10;k++)            {             if(!substr.compare(ch[k]))               {                 if(flag){                 out[f++]=ch[k];                 out[f++]=ch[k];                 flag=0;                 break;                              }               else{                 out[f++]=ch[k];                   break;               }             }            }         }       }      }   }       int flag3=0;//看有無error,默認沒有error   for(int r=0;r<f;r++){     if(out[r]=="error")//有error       flag3=1;   }    if(!flag3)     for(r=0;r<f;r++)       for(k=0;k<10;k++)        {         if(out[r]==ch[k])             printf("%d",k);       }   else     printf("error");    printf("/n");  }      void main()  {    string str;     while(getline(cin,str))      process(str);  }