#include <bits/stdc++.h>
#ifdef LOCAL
#include <debug.hpp>
#else
#define debug(...) void(0)
#endif

#include <type_traits>

namespace geometry {

template <typename T> struct Point {
    static T EPS;

    static void set_eps(T eps) { EPS = eps; }

    T x, y;

    Point() {}

    Point(T x, T y) : x(x), y(y) {}

    Point operator+(const Point& p) const { return Point(x + p.x, y + p.y); }

    Point operator-(const Point& p) const { return Point(x - p.x, y - p.y); }

    Point operator*(T t) const { return Point(x * t, y * t); }

    Point operator/(T t) const { return Point(x / t, y / t); }

    bool operator==(const Point& p) const { return x == p.x and y == p.y; }

    bool operator!=(const Point& p) const { return not((*this) == p); }

    bool operator<(const Point& p) const { return x != p.x ? x < p.x : y < p.y; }

    friend std::istream& operator>>(std::istream& is, Point& p) { return is >> p.x >> p.y; }

    friend std::ostream& operator<<(std::ostream& os, const Point& p) { return os << p.x << ' ' << p.y; }

    T norm() { return std::sqrt(x * x + y * y); }

    T norm2() { return x * x + y * y; }

    T arg() { return std::atan2(y, x); }

    T dot(const Point& p) { return x * p.x + y * p.y; }

    T det(const Point& p) { return x * p.y - y * p.x; }

    Point perp() { return Point(-y, x); }

    Point unit() { return *this / norm(); }

    Point normal() { return perp().unit(); }

    Point rotate(T rad) { return Point(std::cos(rad) * x - std::sin(rad) * y, std::sin(rad) * x + std::cos(rad) * y); }
};

template <> double Point<double>::EPS = 1e-9;
template <> long double Point<long double>::EPS = 1e-12;
template <> int Point<int>::EPS = 0;
template <> long long Point<long long>::EPS = 0;

template <typename T> int sgn(T x) { return x < -Point<T>::EPS ? -1 : x > Point<T>::EPS ? 1 : 0; }

}  // namespace geometry

namespace geometry {

enum Position { COUNTER_CLOCKWISE = +1, CLOCKWISE = -1, ONLINE_BACK = +2, ONLINE_FRONT = -2, ON_SEGMENT = 0 };

template <typename T> Position ccw(const Point<T>& a, Point<T> b, Point<T> c) {
    b = b - a;
    c = c - a;
    if (sgn(b.det(c)) == 1) return COUNTER_CLOCKWISE;
    if (sgn(b.det(c)) == -1) return CLOCKWISE;
    if (sgn(b.dot(c)) == -1) return ONLINE_BACK;
    if (b.norm2() < c.norm2()) return ONLINE_FRONT;
    return ON_SEGMENT;
}

}  // namespace geometry

using namespace std;

typedef long long ll;
#define all(x) begin(x), end(x)
constexpr int INF = (1 << 30) - 1;
constexpr long long IINF = (1LL << 60) - 1;
constexpr int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1};

template <class T> istream& operator>>(istream& is, vector<T>& v) {
    for (auto& x : v) is >> x;
    return is;
}

template <class T> ostream& operator<<(ostream& os, const vector<T>& v) {
    auto sep = "";
    for (const auto& x : v) os << exchange(sep, " ") << x;
    return os;
}

template <class T, class U = T> bool chmin(T& x, U&& y) { return y < x and (x = forward<U>(y), true); }

template <class T, class U = T> bool chmax(T& x, U&& y) { return x < y and (x = forward<U>(y), true); }

template <class T> void mkuni(vector<T>& v) {
    sort(begin(v), end(v));
    v.erase(unique(begin(v), end(v)), end(v));
}

template <class T> int lwb(const vector<T>& v, const T& x) { return lower_bound(begin(v), end(v), x) - begin(v); }

using namespace geometry;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n;
    cin >> n;
    vector<Point<ll>> ps;
    vector<char> labels(n);
    for (int i = 0; i < n; i++) {
        int x, y;
        cin >> x >> y >> labels[i];
        ps.emplace_back(x, y);
    }

    auto f = [&](int i, int j, int k) {
        int res = ccw(ps[i], ps[j], ps[k]);
        if (res == Position::COUNTER_CLOCKWISE) return 1;
        if (res == Position::CLOCKWISE) return -1;
        return 0;
    };
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            if (i == j) continue;
            if (labels[i] != labels[j]) continue;
            for (int k = 0; k < n; k++) {
                if (i == k or j == k) continue;
                if (f(i, j, k) and f(j, k, i) and f(k, i, j)) {
                    cout << "Infinity\n";
                    return 0;
                }
            }
        }
    }

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            if (i == j) continue;
            if (labels[i] == labels[j]) {
                cout << 2 << '\n';
                return 0;
            }
        }
    }

    cout << 1 << '\n';
    return 0;
}