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

using i8 = int8_t;
using i16 = int16_t;
using i32 = int32_t;
using i64 = int64_t;
using isize = ptrdiff_t;
using u8 = uint8_t;
using u16 = uint16_t;
using u32 = uint32_t;
using u64 = uint64_t;
using usize = size_t;
using f32 = float_t;
using f64 = double_t;

inline constexpr i32 Modulus = 1e9 + 7;

template <typename TScalar, typename... TRest>
inline constexpr TScalar Max(TScalar first, TRest... rest)
{
    static_assert((is_same_v<TScalar, TRest> && ...), "All arguments must have the same type");
    if constexpr (sizeof...(rest) == 0)
        return first;
    else
        return (first > Max(rest...)) ? first : Max(rest...);
}

struct Event
{
    u32 Time;
    i32 Effect;

    bool operator<(const Event& other) const
    {
        return Time < other.Time;
    }
};

int main(void)
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    usize n;
    cin >> n;

    vector<Event> events(2 * n);
    for (usize index = 0; index < 2 * n; index += 1)
    {
        u32 time;
        cin >> time;
        events[index] = Event{time, 1 - static_cast<i32>((index & 1) << 1)};
    }

    sort(events.begin(), events.end());

    usize maxCustomers = 0, currentCustomers = 0;
    for (const Event& event : events)
    {
        currentCustomers += event.Effect;
        maxCustomers = Max(maxCustomers, currentCustomers);
    }

    cout << maxCustomers;

    return 0;
}