package contest190830; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.util.InputMismatchException; public class E4 { InputStream is; PrintWriter out; String INPUT = ""; void solve() { Datum a = new Datum(ns().toCharArray()); Datum b = new Datum(ns().toCharArray()); int n = a.cs.length, m = b.cs.length; int[] dp = new int[m+1]; for(int i = 0;i <= n;i++) { int[] ndp = new int[m+1]; for(int j = 0;j <= m;j++) { if(i == 0 && j == 0)continue; int min = 999999999; if(i-1 >= 0) { min = Math.min(min, dp[j] + (a.con[i-1] == 0 ? 1 : 0)); } if(j-1 >= 0) { min = Math.min(min, ndp[j-1] + (b.con[j-1] == 0 ? 1 : 0)); } if(i-1 >= 0 && j-1 >= 0) { if(a.con[i-1] == 2) { min = Math.min(min, Math.min(dp[j-1], ndp[j-1]) + (b.cs[j-1] != a.cs[i-1] && b.con[j-1] == 0 ? 1 : 0)); }else if(b.con[j-1] == 2) { min = Math.min(min, Math.min(dp[j-1], dp[j]) + (b.cs[j-1] != a.cs[i-1] && a.con[i-1] == 0 ? 1 : 0)); }else if(a.con[i-1] == 1) { min = Math.min(min, dp[j-1] + (a.cs[i-1] != b.cs[j-1] && b.con[j-1] == 0 ? 1 : 0)); }else if(b.con[j-1] == 1) { min = Math.min(min, dp[j-1] + (a.cs[i-1] != b.cs[j-1] && a.con[i-1] == 0 ? 1 : 0)); }else { min = Math.min(min, dp[j-1] + (a.cs[i-1] != b.cs[j-1] ? 1 : 0)); } } ndp[j] = min; } dp = ndp; } out.println(dp[m]); } static class Datum { char[] cs; int[] con; public Datum(char[] s) { int n = s.length; cs = new char[n]; con = new int[n]; int p = 0; for(int i = 0;i < n;i++) { cs[p] = s[i]; if(i+1 < n && s[i+1] == '?') { con[p] = 1; i++; }else if(i+1 < n && s[i+1] == '*') { con[p] = 2; i++; }else { con[p] = 0; } p++; } cs = Arrays.copyOf(cs, p); con = Arrays.copyOf(con, p); } } void run() throws Exception { is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes()); out = new PrintWriter(System.out); long s = System.currentTimeMillis(); solve(); out.flush(); if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); // Thread t = new Thread(null, null, "~", Runtime.getRuntime().maxMemory()){ // @Override // public void run() { // long s = System.currentTimeMillis(); // solve(); // out.flush(); // if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); // } // }; // t.start(); // t.join(); } public static void main(String[] args) throws Exception { new E4().run(); } private byte[] inbuf = new byte[1024]; public int lenbuf = 0, ptrbuf = 0; private int readByte() { if(lenbuf == -1)throw new InputMismatchException(); if(ptrbuf >= lenbuf){ ptrbuf = 0; try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); } if(lenbuf <= 0)return -1; } return inbuf[ptrbuf++]; } private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); } private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; } private double nd() { return Double.parseDouble(ns()); } private char nc() { return (char)skip(); } private String ns() { int b = skip(); StringBuilder sb = new StringBuilder(); while(!(isSpaceChar(b))){ // when nextLine, (isSpaceChar(b) && b != ' ') sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } private char[] ns(int n) { char[] buf = new char[n]; int b = skip(), p = 0; while(p < n && !(isSpaceChar(b))){ buf[p++] = (char)b; b = readByte(); } return n == p ? buf : Arrays.copyOf(buf, p); } private int[] na(int n) { int[] a = new int[n]; for(int i = 0;i < n;i++)a[i] = ni(); return a; } private long[] nal(int n) { long[] a = new long[n]; for(int i = 0;i < n;i++)a[i] = nl(); return a; } private char[][] nm(int n, int m) { char[][] map = new char[n][]; for(int i = 0;i < n;i++)map[i] = ns(m); return map; } private int[][] nmi(int n, int m) { int[][] map = new int[n][]; for(int i = 0;i < n;i++)map[i] = na(m); return map; } private int ni() { return (int)nl(); } private long nl() { long num = 0; int b; boolean minus = false; while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-')); if(b == '-'){ minus = true; b = readByte(); } while(true){ if(b >= '0' && b <= '9'){ num = num * 10 + (b - '0'); }else{ return minus ? -num : num; } b = readByte(); } } private static void tr(Object... o) { System.out.println(Arrays.deepToString(o)); } }