#include <iostream> using namespace std; int main() { int n; // while (1) // { scanf("%d", & n); for (int l = 1; l <= n; l++) { for (int j = l; j <= n - 1 ; j++) { cout << " "; } for (int i = 1; i <= l; i++) { cout << i; } for (int i = l - 1; i > 0; i--) { cout << i; } cout << endl; } for (int l = n - 1; l > 0; l--) { for (int j = l; j <= n - 1 ; j++) { cout << " "; } for (int i = 1; i <= l; i++) { cout << i; } for (int i = l - 1; i > 0; i--) { cout << i; } cout << endl; } // } return 0; }