#include <bits/stdc++.h>

using i64 = long long;
using u64 = unsigned long long;
using u32 = unsigned;
using u128 = unsigned __int128;

int query(const std::string &s) {
    std::cout << "? " << s << std::endl;
    int ans;
    std::cin >> ans;
    return ans;
}

int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    
    int N, K, Q;
    std::cin >> N >> K >> Q;
    
    std::vector<int> ans;
    auto work = [&](auto &&self, int l, int r, int s) -> void {
        if ((r - l) * (2 * K) - s < K) {
            return;
        }
        if (r - l == 1) {
            ans.push_back(r);
            return;
        }
        int m = (l + r) / 2;
        std::string s1, s2;
        for (int i = 0; i < N; i++) {
            if (l <= i && i < m) {
                s1 += '1';
                s2 += '0';
            } else {
                s1 += '0';
                s2 += '1';
            }
        }
        
        int sl = query(s1) - query(s2) + N * K - K * (K + 1) / 2;
        int sr = s - sl;
        self(self, l, m, sl);
        self(self, m, r, sr);
    };
    work(work, 0, N, N * 2 * K - K * (K + 1));
    
    std::cout << "! " << ans[0] << " " << ans[1] << std::endl;
    
    return 0;
}