题解

#include<bits/stdc++.h>
using namespace std;
int main(){
	string jntm;
	getline(cin,jntm);
	int len = jntm.length();
	string mtnj;
	getline(cin,mtnj);
	int len2=mtnj.length();
	string cxk;
	for(int i=0;i<=len;i++) if(jntm[i]==' ') 1+1==2; else if(jntm[i]>='A' and jntm[i]<='Z') cxk+=jntm[i]+'a'-'A'; else cxk+=jntm[i];
	jntm=cxk; cxk="";
	for(int i=0;i<=len2;i++) if(mtnj[i]==' ') 1+1==2; else if(mtnj[i]>='A' and mtnj[i]<='Z') cxk+=mtnj[i]+'a'-'A'; else cxk+=mtnj[i];
	mtnj=cxk;
	if(jntm==mtnj) cout<<"YES";
	else cout<<"NO";
	return 0;
}