#include <iostream>
using namespace std;

int main() 
{
    int N;
    cin >> N;

    for (int i = 0; i < N; i++) 
    {
        for (int j = 0; j < N; j++) 
        {
            if (i == j || i + j == N - 1) 
            {
                cout << "+";
            } 
            else 
            {
                cout << "-";
            }
        }
        cout << endl;
    }

    return 0;
}

加油