//All in All
#include <iostream>
using namespace std;
#include <string>

int main()
{
	int number = 0;
	int k=0;
	string s , t;
	cin>>s>>t;

	for(int j=0;j<s.size();j++)
	{
		for(;k<t.size();k++)
		{
			if(s.at(j)==t.at(k))
			{
				number++;
				break;
			}
		}
	}
	if(number == s.size())
		cout<<"Yes"<<endl;
	else
		cout<<"No"<<endl;
	return 0;
}