#include <iostream>
using namespace std;
struct postion {
    int x, y;
};
void dddmove(postion *b, int c) {
    int x1 = 0, x2 = 0, x3 = 0, x4 = 0;
    for (int i = 0; i < c; i++) {
        if (b[i].x > 0)
            x1++;
        if (b[i].x < 0)
            x3++;
        if (b[i].y > 0)
            x2++;
        if (b[i].y < 0)
            x4++;
    }
    if (x1 > 0 && x2 > 0 && x3 > 0 && x4 > 0) {
        return;
    } else if (x1 == 0) {
        for (int i = 0; i < c; i++) {
            b[i].x--;
        }
    } else if (x2 == 0) {
        for (int i = 0; i < c; i++) {
            b[i].y--;
        }
    } else if (x3 == 0) {
        for (int i = 0; i < c; i++) {
            b[i].x++;
        }
    } else if (x4 == 0) {
        for (int i = 0; i < c; i++) {
            b[i].y++;
        }
    }
}
void elephantmove(postion *a, int c) {
    for (int i = 0; i < c; i++) {
        if (a[i].x > 0) {
            a[i].x--;
        }
        if (a[i].x < 0) {
            a[i].x++;
        }
        if (a[i].y > 0) {
            a[i].y--;
        }
        if (a[i].y < 0) {
            a[i].y++;
        }
    }
}
int judge(postion *b, int c) {
    int m = 0, n = 0;
    if (c == 0) {
        return 3;
    }
    for (int i = 0; i < c; i++) {
        if (b[i].x == 0 && b[i].y == 0) {
            return 9;
        }
        if (b[i].x != 0 && b[i].y != 0) {
            return 8;
        }
        if (b[i].x == 0) {
            m++;
        }
        if (b[i].y == 0) {
            n++;
        }
    }
    if (m != 0 & n != 0) {
        return 8;
    }
    return 3;
}
int main() {
    postion ddd;
    ddd.x = ddd.y = 0;
    int n;
    cin >> n;
    postion *elephant = new postion[n];
    for (int i = 0; i < n; i++) {
        cin >> elephant[i].x >> elephant[i].y;
    }
    int m = 8;
    while (m == 8) {
        dddmove(elephant, n);
        elephantmove(elephant, n);
        m = judge(elephant, n);
    }
    if (m == 9) {
        cout << "banana";
    }
    if (m == 3) {
        cout << "ddd";
    }
    delete[] elephant;
    return 0;
}