using?namespace?std;
#include?
#include?
#include?

#define?ARRAY_SIZE?200


int?main（）
{
	char?str[ARRAY_SIZE];
	int?n?=?0;
	for?（;?n?	{//first?line?to?char?array
		char?c=getchar（）;
		if?（c==‘\n‘）
		{
			break;
		}
		else?if（isalpha（c））
		{
	
				str[n++]?=?tolower（c）;
		}
	}
	str[n]?=?‘\0‘;
	//sort?the?characters
	for?（int?i?=?0;?i?	{
		char?tmp?=?str[i];
		int?j?=?i-1;
		for?（;?tmp?		{
			str[j?+?1]?=?str[j];
		}
		str[j+1]?=?tmp;
	}
	//reference?letter
	char?ref?=?str[n?/?2?];
	//remove?repeated?characters
	char?tmpstr[ARRAY_SIZE];
	tmpstr[0]?=?str[0];
	int?l?=?0;
	for?（int?i?=?1;?i?	{
		if?（tmpstr[l]!=str[i]）
			tmpstr[++l]?=?str[i];
	}
	tmpstr[++l]?=?‘\0‘;
	//claculate?ref?pos
	int?ref_pos=0;
	while（tmpstr[ref_pos]!=ref）
	{
		++ref_pos;
	}
	//get?second?line
	char?passchar;
	bool?flag?=?true;
	int?result[ARRAY_SIZE];
	n?=?0;?//the?length?of?result
	while?（（passchar=getchar（））?!=?‘\n‘&&flag）
	{
		passchar?=?tolower（passchar）;
		for?（int?i?=?0;?i?		{
			if?（passchar?==?tmpstr[i]）
			{
				result[n++]?=?i?-?ref_pos;
				break;
			}
			if?（i==l-1）
			{//not?find?passchar
				cout<<“Invalid?code:?Don‘t?break?it!“<				flag?=?false;
			}
		}
	}
	if?（flag==true）
	{//output
		for?（int?i?=?0;?i?		{
			int??d?=?result[i];
			cout?<=?0???““?:?“a“）?<		}
	}
	system（“PAUSE“）;
	return?0;
}

//Success?is?not?final?failure?is?not?fatal:?it?is?the?courage?to?continue?that?counts
//Please?turn?off?the?light?when?you?leave?this?room
//The?two?most?important?days?in?your?life?are?the?day?you?are?born?and?the?day?you?find?out?why

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????1764??2018-05-04?21:50??Electric_lock.cpp
?????文件??????124502??2018-05-04?17:28??ENGG111_assignment2_v3.pdf
?????文件????????1034??2018-05-04?23:32??home.cpp
?????文件?????????148??2018-05-04?23:38??readme.txt