#include <iostream>
void printPattern(int n) {
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= i; j++) {
std::cout << i << " ";
}
std::cout << std::endl;
}
}
int main() {
int n;
std::cout << "请输入一个正整数n:";
std::cin >> n;
printPattern(n);
return 0;
}