#include<stdio.h>

int main(void){

	char str1[11],str2[11];
	int check = 0;

	scanf("%s %s",str1,str2);


	for(int i = 0;str1[i] != '\0';i++){
		check = 0;

		for(int j = 0;str2[j] != '\0';j++){
			if(str1[i] == str2[j]){
				check = 1;
			}
		}

		if(check == 0){
			break;
		}
	}

	if(check != 0){
		printf("YES\n");
	}else{
		printf("NO\n");
	}
	return 0;
}