/* -*- coding: utf-8 -*-
 *
 * 874.cc:  No.874 正規表現間距離 - yukicoder
 */

#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<set>
#include<stack>
#include<list>
#include<queue>
#include<deque>
#include<algorithm>
#include<numeric>
#include<utility>
#include<complex>
#include<functional>
 
using namespace std;

/* constant */

const int MAX_N = 2000;
const int INF = 1 << 30;

/* typedef */

typedef pair<char,char> pcc;

/* global variables */

char sa[MAX_N + 4], sb[MAX_N + 4];
pcc as[MAX_N + 1], bs[MAX_N + 1];
int dp[MAX_N + 1][MAX_N + 1];

/* subroutines */

int parse(char s[], pcc v[]) {
  int n = 0;
  for (int i = 0; s[i]; i++) {
    if (s[i] == '?') v[n - 1].second = '?';
    else if (s[i] == '*') v[n - 1].second = '*';
    else v[n++] = pcc(s[i], '.');
  }
  return n;
}

void printpcc(int n, pcc v[]) {
  for (int i = 0; i < n; i++) {
    putchar(v[i].first);
    putchar(v[i].second);
  }
  putchar('\n');
}

inline void setmin(int &a, int b) { if (a > b) a = b; }

/* main */

int main() {
  scanf("%s%s", sa, sb);
  int an = parse(sa, as);
  int bn = parse(sb, bs);
  //printpcc(an, as); printpcc(bn, bs);

  for (int i = 0; i <= an; i++)
    fill(dp[i], dp[i] + bn + 1, INF);
  dp[0][0] = 0;

  for (int i = 0; i <= an; i++) {
    char &ac = as[i].first, &am = as[i].second;

    for (int j = 0; j <= bn; j++) {
      char &bc = bs[j].first, &bm = bs[j].second;

      if (i < an && j < bn && ac == bc) {
	setmin(dp[i + 1][j + 1], dp[i][j]);
	if (am == '*')
	  setmin(dp[i][j + 1], dp[i][j]);
	if (bm == '*')
	  setmin(dp[i + 1][j], dp[i][j]);
      }

      if (i < an)
	setmin(dp[i + 1][j], dp[i][j] + ((am == '.') ? 1 : 0));
      if (j < bn)
	setmin(dp[i][j + 1], dp[i][j] + ((bm == '.') ? 1 : 0));
    }
  }

  printf("%d\n", dp[an][bn]);
  return 0;
}