#include<bits/stdc++.h> 
using namespace std;
int dp[1005][1005];
signed main(){
   /*变量类型（int，string.....）*/ x,zix;
   cin>>x>>zix；
   for(int i=1;i<=x.length();i++){
      for(int j=1;j<=zix.length();j++){
         /*p[i][j]初始化*/
         if(/*特判*/)
               dp[i][j]=/*递推式*/
      }  
   }
   cout<<dp[x.length()][zix.length()];
   return 0; 
}