include<iostream>
using namespace std;
class Mystring
{
private:
	char str[1024];
	unsigned len;
public:
	Mystring() { len = 0; };
	Mystring& operator =(const char* str1)
	{
		int i = 0;
		for (i = 0; i < 1024&&str1[i]!='\0'; i++)
		{
			
			str[i] = str1[i];
			len++;
		}
		return *this;
	}
	friend ostream& operator <<(ostream& out, Mystring good)
	{
		int j = 0;
		for (j = 0; j <good. len; j++)
		{
			out << good.str[j];
		}
		
		return out;
	}
	Mystring& operator=(const Mystring good)
	{
		len = good.len;
		int i = 0;
		for (i = 0; i < len; i++)
		{
			str[i] = good.str[i];
		}
		return *this;
	}
	Mystring& operator+(const Mystring good)
	{
		int j = len;
		len = len + good.len;
		int i = 0;
		for (j; j < len; j++)
		{
			str[j] = good.str[i];
			i++;
		}
		return *this;
	}
	char &operator[](int a)
	{
		return str[a];
	}
	bool operator==(const Mystring good)
	{
		if (good.len != len)
		{
			return false;
		}
		
		
			int i = 0;
			for (i = 0; i < len; i++)
			{
				if (str[i] != good.str[i])
				{
					return false;
				}
			}
			
		
		return true;
	}
	bool operator!=(Mystring good)
	{
		if (good.len != len)
		{
			return true;
		}
	
		
			int i = 0;
			for (i = 0; i < len; i++)
			{
				if (str[i] == good.str[i])
				{
					return false;
				}
			}
			
		
		return true;
	}
	/*bool operator==(const Mystring mstr) {
		if (len != mstr.len) {
			return false;
		}
		for (int i = 0; i < len; i++) {
			if (str[i] != mstr.str[i]) {
				return false;
			}
		}
		return true;
	}*/
	/*bool operator!=(const Mystring mstr) {
		return !(*this == mstr);
	}*/
	Mystring& operator+=(const Mystring good)
	{
		int i = len;
		len = len + good.len;
		int j = 0;
		for (i; i < len; i++)
		{
			str[i] = good.str[j];
			j++;
		}
		return *this;
	}
	bool operator>(const Mystring good)
	{
		int i;
		int j;
		if (len <= good.len)
		{
			i = len;
			j = 0;
		}
		else
		{
			i = good.len;
			j = 1;
		}
		int k = 0;
		for (k = 0; k < i; k++)
		{
			if (str[k] > good.str[k])
			{
				return true;
			}
			else if (str[k] < good.str[k])
			{
				return false;
			}
			else
			{

			}
		}
		if (j == 0)
		{
			return false;
		}
		else
		{
			return true;
		}
	}
	bool operator<(const Mystring good)
	{
		int i;
		int j;
		if (len <= good.len)
		{
			i = len;
			j = 0;
		}
		else
		{
			i = good.len;
			j = 1;
		}
		int k = 0;
		for (k = 0; k < i; k++)
		{
			if (str[k] < good.str[k])
			{
				return true;
			}
			else if (str[k] > good.str[k])
			{
				return false;
			}
			else
			{

			}
		}
		if (j == 0)
		{
			return true;
		}
		else
		{
			return false;
		}
	}

};

	int main()

	{

		char ts[1024];

		cin >> ts;

		Mystring s;

		s = ts;

		cin >> ts;

		Mystring ss;

		ss = ts;
		

		if (ss == s)

			cout << "equal" << endl;

		if (ss != s)

		{

			cout << "Not equal" << endl;

			if (s > ss)

				cout << "s da yu ss" << endl;

			if (s < ss)

				cout << "s xiao yu ss" << endl;

		}

		ss += s;

		Mystring sss;

		sss = s + ss;

		sss[0] = '$';

		cout << sss << endl;

		return 0;

	}