#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) {
cout << j*(j+1)/2+1 + i;
}
cout << '\t';
}
cout << endl;
}
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKaW50IG1haW4oKSB7CglpbnQgbjsKCWNpbiA+PiBuOwoJZm9yKGludCBpID0gMDsgaSA8IG47ICsraSkgewoJCWZvcihpbnQgaiA9IDA7IGogPCBuOyArK2opIHsKCQkJaWYoaSA8PSBqKSB7CgkJCQljb3V0IDw8IGoqKGorMSkvMisxICsgaTsKCQkJfQoJCQljb3V0IDw8ICdcdCc7CgkJfQoJCWNvdXQgPDwgZW5kbDsKCX0KCXJldHVybiAwOwp9