#include <stdio.h>
void printNumbersRecursively(int current, int n) {
if (current > n) return;
for (int i = 0; i < current; i++) {
printf("%d ", current);
}
printf("\n");
printNumbersRecursively(current + 1, n);
}
int main() {
int n;
printf("输入数字n: ");
scanf("%d", &n);
printNumbersRecursively(1, n);
return 0;
}