#include<iostream>
 #include<cstring> 
 using namespace std; 
 int main() { 	char sa[100], sb[100]; 	int a[26] = {0}, b[26] = {0}; 	int i = -1; 	int _bool=0; 	cin >> sa >> sb; 	while(++i < strlen(sa)) { 		a[sa[i] - 'A']++; 		b[sb[i] - 'A']++; 	} 	i=-1; 	while(++i<26){ 		if(a[0]==b[i]){ 			int *pa=a,*pb=b+i; 			for(int j=0;j<26;j++){ 				if(*pa==*pb){ 					pa++; 		if(pb==b+25){ 					pb=b; 				}else		pb++; 				}else break; 				 				if(pa==a+25){ 					_bool=1; 				} 			} 		} 	} 	if(_bool==1)cout<<"YES"<<endl; 	else cout<<"NO"<<endl; 	return 0; }

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