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//Pawel Kura, zadanie Cieplo-zimno

#include <bits/stdc++.h>
#include "cielib.h"

using namespace std;

const int MAXD = 500;


int D, K, R;
int a[MAXD];

int cCieplo(int *x) {
    return czyCieplo(x);
}

bool cieplej(int *x, int i, int d, bool ref = true) {
    if (ref)
        cCieplo(x);
    x[i] += d;
    int r = cCieplo(x);
    x[i] -= d;

    return r == 1;
}

bool zimniej(int *x, int i, int d, bool ref = true) {
    x[i] += d;
    if (ref)
        cCieplo(x);
    x[i] -= d;
    int r = cCieplo(x);

    return r == 1;
}


bool sprawdz(int *x) {
    if (x[0] == 0) {
        return zimniej(x, 0, 1);
    }

    if (x[0] == R) {
        return zimniej(x, 0, -1);
    }

    return zimniej(x, 0, -1) && zimniej(x, 0, 1);
}


int main() {
    D = podajD();
    K = podajK();
    R = podajR();

    int p1 = 0;
    int p2 = 0;
    int iter = 0;
    int from[MAXD], to[MAXD], mid[MAXD];
    for (int i = 0; i < D; i++) {
        from[i] = 0;
        to[i] = R;
    }
    while (1) {

        for (int i = 0; i < D; i++) {
            a[i] = (from[i] + to[i]) / 2;
        }

        for (int i = 0; i < D; i++) {
            if (from[i] == to[i]) continue;
            int m = a[i];
            a[i] = from[i];
            czyCieplo(a);
            a[i] = to[i];
            int p = czyCieplo(a);
            if (p == 0) {
                a[i] = from[i];
                p = czyCieplo(a);
                p = -p;
            }

            if (p == 1) {
                from[i] = m + 1;
            } else if (p == -1) {
                to[i] = m;
            } else {
                from[i] = to[i] = m;
            }

            a[i] = (from[i] + to[i])/2;
        }


        int s = 0;
        for (int i = 0; i < D; i++) {
            //cerr << i << ": " << from [i] << " " << to[i] << "\n";
            s += to[i] - from[i];
        }

        //cerr <<"\n";
        for (int i = 0; i < D; i++) {
            //cerr << a[i] << " ";
        }
        //cerr <<"\n";


        if (s == 0) {
            for (int i = 0; i < D; i++) {
                if (a[i] > 0 && a[i] < R) {
                    int p = zimniej(a, i, -1);
                    int r = zimniej(a, i, 1);

                    if (p && r) continue;
                    if (p) a[i]++;
                    if (r) a[i]--;


                    continue;
                }

                if (a[i] == 0) {
                    if (cieplej(a, i, 1)) {
                        a[i]++;
                        continue;
                    }

                    if (zimniej(a, i, 1)) {
                        continue;
                    }

                    if (!zimniej(a, i, 2)) {
                        a[i]++;
                    }

                    continue;
                }

                if (a[i] == R) {
                    if (cieplej(a, i, -1)) {
                        a[i]--;
                        continue;
                    } 

                    if (zimniej(a, i, -1)) {
                        continue;
                    }

                    if (!zimniej(a, i, -2)) {
                        a[i]--;
                    }

                    continue;
                }

            }
        }
        if (sprawdz(a)) {
            znalazlem(a);
            break;
        }
        if (s==0) { cerr << "ZONK\n"; break; }
    }

    return 0;
}