#include <bits/stdc++.h>




namespace zawa {

using i16 = std::int16_t;
using i32 = std::int32_t;
using i64 = std::int64_t;
using i128 = __int128_t;

using u8 = std::uint8_t;
using u16 = std::uint16_t;
using u32 = std::uint32_t;
using u64 = std::uint64_t;

using usize = std::size_t;

} // namespace zawa


namespace zawa {

void SetFastIO() {
    std::cin.tie(nullptr)->sync_with_stdio(false);
}

void SetPrecision(u32 dig) {
    std::cout << std::fixed << std::setprecision(dig);
}

} // namespace zawa
using namespace zawa;

int main() {
    SetFastIO();

    int n, x, y; std::cin >> n >> x >> y;
    std::vector<std::pair<long long, long long>> a(x + y);
    for (int i{} ; i < n ; i++) {
        long long p; std::cin >> p;
        char c; std::cin >> c;
        if (c == 'A') {
            a[i % (x + y)].first += p;
        }
        else if (c == 'B') {
            a[i % (x + y)].second += p;
        }
        else {
            assert(false);
        }
    }
    std::ranges::sort(a, [](const auto& i, const auto& j) -> bool {
            return i.first - i.second > j.first - j.second;
            });
    long long ans{};
    for (int i{} ; auto [p, q] : a) {
        assert(x > 0 or y > 0);
        assert(x >= 0 and y >= 0);
        if (p >= q) {
            if (x) {
                ans += p;
                x--;
            }
            else {
                ans += q;
                y--;
            }
        }
        else {
            if (y) {
                ans += q;
                y--;
            }
            else {
                ans += p;
                x--;
            }
        }
        i++;
    }
    assert(x == 0 and y == 0);

    std::cout << ans << '\n';
}