#include <bits/stdc++.h>

using namespace std;

#define int long long
// #define double long double
#define FOR(i, a, b) for(int i = (a); i < (b); ++i)
#define FORR(i, a, b) for(int i = (a); i > (b); --i)
#define REP(i, n) for(int i = 0; i < (n); ++i)
#define REPR(i, n) for(int i = n; i >= 0; i--)
#define FOREACH(x, a) for(auto &(x) : (a))
#define VECCIN(x)                                                              \
    for(auto &youso_ : (x)) cin >> youso_
#define bitcnt(x) __builtin_popcount(x)
#define lbit(x) __builtin_ffsll(x)
#define rbit(x) __builtin_clzll(x)
#define SZ(x) ((long long)(x).size())
#define fi first
#define se second
#define All(a) (a).begin(), (a).end()
#define rAll(a) (a).rbegin(), (a).rend()
#define cinfast() cin.tie(0), ios::sync_with_stdio(false)
#define PERM(c)                                                                \
    sort(All(c));                                                              \
    for(bool cp = true; cp; cp = next_permutation(All(c)))
#define MKORDER(n)                                                             \
    vector<int> od(n);                                                         \
    iota(All(od), 0LL);

template <typename T = long long> inline T IN() {
    T x;
    cin >> x;
    return (x);
}
inline void CIN() {}
template <class Head, class... Tail>
inline void CIN(Head &&head, Tail &&... tail) {
    cin >> head;
    CIN(move(tail)...);
}
#define CCIN(...)                                                              \
    char __VA_ARGS__;                                                          \
    CIN(__VA_ARGS__)
#define DCIN(...)                                                              \
    double __VA_ARGS__;                                                        \
    CIN(__VA_ARGS__)
#define LCIN(...)                                                              \
    long long __VA_ARGS__;                                                     \
    CIN(__VA_ARGS__)
#define SCIN(...)                                                              \
    string __VA_ARGS__;                                                        \
    CIN(__VA_ARGS__)
#define Yes(a) cout << (a ? "Yes" : "No") << "\n"
#define YES(a) cout << (a ? "YES" : "NO") << "\n"
#define Printv(v)                                                              \
    {                                                                          \
        FOREACH(x, v) { cout << x << " "; }                                    \
        cout << "\n";                                                          \
    }
template <typename T = string> inline void eputs(T s) {
    cout << s << "\n";
    exit(0);
}
template <typename A, size_t N, typename T>
void Fill(A (&array)[N], const T &val) {
    std::fill((T *)array, (T *)(array + N), val);
}

template <typename T> using PQG = priority_queue<T, vector<T>, greater<T>>;
template <typename T> using PQ = priority_queue<T>;

typedef long long ll;
typedef vector<ll> VL;
typedef vector<VL> VVL;
typedef pair<ll, ll> PL;
typedef vector<PL> VPL;
typedef vector<bool> VB;
typedef vector<double> VD;
typedef vector<string> VS;

const int INF = 1e9;
const int MOD = 1e9 + 7;
// const int MOD = 998244353;
const ll LINF = 1e18;
const double PI = atan(1.0) * 4.0;
const ll dw[] = {1, 1, 0, -1, -1, -1, 0, 1};
const ll dh[] = {0, 1, 1, 1, 0, -1, -1, -1};
#define PI 3.141592653589793238

VL Zalgo(const string &S) {
    int N = (int)S.size();
    VL res(N);
    res[0] = N;
    int i = 1, j = 0;
    while(i < N) {
        while(i + j < N && S[j] == S[i + j]) ++j;
        res[i] = j;
        if(j == 0) {
            ++i;
            continue;
        }
        int k = 1;
        while(i + k < N && k + res[k] < j) res[i + k] = res[k], ++k;
        i += k, j -= k;
    }
    return res;
}

VVL G;
VB used, nused;
set<ll> st;
VL hist;
bool finished[1000100];
ll start = -1;

void findroop(int v) {
    used[v] = true;
    hist.emplace_back(v);
    FOREACH(to, G[v]) {
        if(finished[to]) continue;
        if(used[to]) {
            start = to;
            return;
        }
        findroop(to);
        if(start != -1) return;
    }
    hist.pop_back();
    finished[v] = true;
}

bool dfs(ll now) {
    st.emplace(now);
    used[now] = true;
    bool res = true;
    FOREACH(to, G[now]) {
        if(res == false) break;
        if(st.find(to) != st.end()) return false;
        res &= dfs(to);
    }
    return res;
}

ll dfs2(ll now, ll par) {
    used[now] = true;
    ll res = 0;
    FOREACH(to, G[now]) {
        if(to == par || used[to]) continue;
        res = max(res, dfs2(to, now) + 1);
    }
    return res;
}

signed main() {
    SCIN(S, T);
    string tmp = S;
    while(tmp.length() < T.length()) {
        tmp += S;
    }
    VL z = Zalgo(T + "$" + tmp + tmp);
    ll N = tmp.length();
    G.resize(N);
    REP(i, N) {
        if(z[T.length() + 1 + i] == T.length()) {
            G[i].emplace_back((i + T.length()) % N);
        }
    }
    used.assign(N, false);
    ll ans = 0;
    REP(i, N) {
        if(used[i]) continue;
        findroop(i);
        if(start != -1) eputs(-1);
    }
    used.assign(N, false);
    REP(i, N) {
        if(used[i]) continue;
        st.clear();
        dfs(i);
        ans = max(ans, (ll)st.size() - 1);
    }
    cout << ans << "\n";
}


Measured memory_bytes: 107984