#include <stdio.h>
#include <iostream>
#include <string>
#include <map>
#pragma warning(disable:4996);
using namespace std;

string str1, str2;
const int maxn = 1010;
int Str1Num[maxn] = { 0 };
int main()
{
	getline(cin, str1);
	getline(cin, str2);
	int len1 = str1.size();
	int len2 = str2.size();
	int miss = len2;
	for (int i = 0; i < str1.size(); i++)
	{
		Str1Num[str1[i]]++;
	}
	bool flag = true;
	for (int i = 0; i < str2.size(); i++)
	{
		if (Str1Num[str2[i]] > 0)
		{
			Str1Num[str2[i]]--;
			miss--;
		}
		else {
			flag = false;
		}
	}
	if (flag == false)
	{
		printf("No %d",miss);
	}
	else {
		printf("Yes %d",len1 - len2);
	}
}