using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;
using System.Globalization;
using System.Runtime.CompilerServices;
using System.Runtime.Intrinsics.X86;
using System.Runtime.Intrinsics.Arm;

class Program
{
    static int NN => int.Parse(ReadLine());
    static long[] NList => ReadLine().Split().Select(long.Parse).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var s = ReadLine();
        var t = ReadLine();
        if (t.Length == 1)
        {
            WriteLine(s.IndexOf(t) >= 0 ? -1 : 0);
            return;
        }
        var ans = 0;
        var pos = 0;
        while(true)
        {
            var np = s.IndexOf(t, pos);
            if (np < 0) break;
            ++ans;
            pos = np + t.Length - 1;
        }
        WriteLine(ans);
    }
}