#include<bits/stdc++.h>
using namespace std;

int main()
{
	char a,b;
	char n[100],m[100];
	cin>>a;gets(n);
	cin>>b;gets(m);

	if(a>=97)
		a-=32;
		
	if(b>=97)
		b-=32;
			
	if(a==b)
	{cout<<"YES";}
	else
	{cout<<"NO";}	
    return 0;
}

for(int i=0;i<n1;i++)
	{
		if(a[i]>='A'&&a[i]<='Z')
			a1[j++]=a[i]+32;
		else 
			if(a[i]!=' ')
				a1[j++]=a[i];
	}

	j=0;
	for(int i=0;i<n2;i++)
	{
		if(b[i]>='A'&&b[i]<='Z')
			b1[j++]=b[i]+32;
		else 
			if(b[i]!=' ')
				b1[j++]=b[i];
	}
	//cout<<a1<<endl;
	//cout<<b1<<endl;
	if(strcmp(a1,b1)==0) 
		cout<<"YES";
	else
		cout<<"NO";