// Source: https://usaco.guide/general/io

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

string a_next(string a) {
	vector<int> digits(10);
	for (int i = 0; i < a.size(); i++) {
		digits[a[i] - '0']++;
	}

	string next;
	for (int i = 0; i < 10; i++) {
		if (digits[i]) {
			stack<char> st;
			int val = digits[i];
			while (val > 0) {
				st.push(val % 10);
				val /= 10;
			}

			while (!st.empty()) {
				next += (st.top() + '0');
				st.pop();
			}

			next += (i + '0');
		}
	}

	return next;
}

int main() {
	string n;
	cin >> n;

	string cmp;
	cin >> cmp;

	for (int i = 0; i < 100; i++, n = a_next(n)) {
		if (cmp == n) {
			cout << i + 1;
			return 0;
		}
	}

	cout << "Does not appear";
}