/**
  @file 1005.cpp
  @title  No.1005 BOT対策 - yukicoder
  @url https://yukicoder.me/problems/no/1005
**/

#include <bits/stdc++.h>
using namespace std;

typedef long long LL;
typedef unsigned long long uLL;
typedef unsigned int uint;

#define ALL(obj) (obj).begin(), (obj).end()
#define RALL(x) (x).rbegin(), (x).rend()
#define SZ(x) ((int)(x).size())

#define REPI(i, a, b) for (LL i = LL(a); i < LL(b); ++i)
#define REP(i, N) for (LL i = LL(0); i < LL(N); ++i)
#define REPS(i, N) for (int i = 1; i <= (int)(N); i++)
#define RREP(i, N) for (int i = ((int)(N)-1); i >= 0; i--)
#define RREPS(i, N) for (int i = ((int)(N)); i > 0; i--)

#define chmax(ret, x) ret = max(ret, x)
#define chmin(ret, x) ret = min(ret, x)

#define FILL(x, e) memset(x, e, sizeof(x))
#define ZEROS(x) fill(x, 0)

#define SORT(x) sort(ALL(x))
#define RSORT(x) sort(RALL(x))

#define UNIQ(x) x.erase(unique(ALL(x)), x.end())

#define BIT(n) (1LL << (n))

#define OUT(x) cout << (x) << "\n"
#define DEBUG(x) cerr << #x << " : " << x << "\n"
#define DEBUG2(x, y) cerr << "(" << #x << ", " << #y << ") = (" << x << ", " << y << ")\n";

#define PB push_back
#define EB emplace_back
#define MP make_pair
#define MT make_tuple
#define FI first
#define SE second

const int MOD = 1e9 + 7;

void iostream_init() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cout.setf(ios::fixed);
  cout.precision(12);
  // cout.fill('0');
  // cout.width(3);
}

int main() {
  ::iostream_init();

  string S, T;
  cin >> S;
  cin >> T;

  int ans = 0;

  std::string::size_type pos = S.find(T);
  if (pos == std::string::npos) {
    OUT("0");
  } else if (SZ(T) == 1) {
    OUT("-1");
  } else {
    while (pos != std::string::npos) {
      string test;
      for (uint i = T.length() - 1; i != 0; i--) {
        // reset
        test = S;
        test.insert(pos + i, ".");
        if (test.substr(0, pos + T.length() + 1).find(T) == std::string::npos) {
          S = test;
          ans++;
          break;
        }
      }
      pos = S.find(T);
      // pos = S.find(T, pos + 1);
    }
    OUT(ans);
    // OUT(S);
  }

  return 0;
}