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                   \ //~\| |    |\ |~)|_~    | ||\ ||/~\| ||_~
                    | \_/\_/    |~\|~\|__    \_/| \||\_X\_/|__
                (J U S T   L I K E   E V E R Y O N E   E L S E !)

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*/                              
#include<bits/stdc++.h>
using namespace std;
 
#define fastio ios_base::sync_with_stdio(0); cin.tie(0)
#define LL long long 
#define mod 1000000007 
#define all(v) v.begin(),v.end()
#define pr(v) pair<v,v>
#define pb push_back
#define FOR(i, j, k) for (auto i=j ; i<k ; i++)
#define ROF(i, j, k) for (auto i=j ; i>=k ; i--) 
#define debug(...) fprintf(stderr, __VA_ARGS__), fflush(stderr)
#define time__(d) for(long blockTime = 0; (blockTime == 0 ? (blockTime=clock()) != 0 : false); debug("%s time : %.4fs", d, (double)(clock() - blockTime) / CLOCKS_PER_SEC))

const long long INF = 1e18;
const long long MAX = 2e5+10;
int main(){
    fastio;
    int t=1; //cin>>t;
    while(t--){
        string s,t; cin>>s>>t; 
        int ans=INT_MAX;
        FOR(i,0,s.size()-t.size()+1){
            string x = s;
            x.replace(i,t.size(),t);
            
            int temp=0;
          //  cout<<x<<" ";
            FOR(j,i,i+t.size()) if(x[j]!=s[j])  temp++;
            ans = min(ans,temp);
        }
       // if(ans==INT_MAX) ans = 0;
        cout<<ans;
    }
}


Measured memory_bytes: 3652