#include <iostream>

int main() {

    int row, col;
    int size;
    int diagA, diagB;

    std::cout << "Enter height of the песочные часы ";
    std::cin >> size;

    for (row = 0; row < size; row++) {
        for (col = 0; col < size; col++) {

            diagA = row;
            diagB = size - row - 1;

            if (diagA <= diagB) {
                if (col >= diagA && col <= diagB)
                    std::cout << "1 ";
                else
                    std::cout << "0 ";
            } else {
                if (col >= diagB && col <= diagA)
                    std::cout << "1 ";
                else
                    std::cout << "0 ";
            }
        }
        std::cout << std::endl;
    }

    std::cout << std::endl;

    return 0;
}