#include<bits/stdc++.h>
using namespace std;
int main()
{
        string a,b;
        cin>>a>>b;
        int al=a.length(),bl=b.length(),i,j,x,ans=0;
        for(i=0;i<=al-bl;i++)
        {
                int x=i,count=0;
                for(j=0;j<bl;j++)
                if(a[j+x]==b[j])
                count++;
                if(count%2==0)
                ans++;
        }
        cout<<ans<<endl;
        return 0;
}