#include<bits/stdc++.h>
using namespace std;
int main()
{
	string s1,s2;
	cin>>s1>>s2;
	int n=s1.size();
	int k=s2[0]-s1[0];
	if(k<0) k+=26;
//	cout<<k<<endl;
	bool ok=true;
	for(int i=0;i<n;i++)
	{
		int c=s1[i]+k;
	//	cout<<c<<endl;
		if(c>'z') c=c-26;//回到'a'~'z'之间
	//	cout<<c<<endl;
		if(c!=s2[i])
		{
			ok=false;
		} 
	}
	if(ok) cout<<"Yes";
	else cout<<"No";
	return 0;
}