What should I do to remove preceding '0' for numbers below or equal to 9?

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C++

Hello! How can I have an output of
Sample Input:
9
Sample Output:
1.2.3.4.5.6.7.8.9

If you input numbers below or equal to 9, the output should be (1.2.3.4.5.6.7.8.9)

But if you input a number greater than 9, for example:
Sample Input No.2:
20
Sample Output No.2:
01.02.03.04.05.06.07.08.09.10
11.12.13.14.15.16.17.18.19.20

My code below is for Sample Input & Output No.2. I tried adding another for loop but it still reads Sample Input & Output No.2 code. What should I do?

What I have tried:

#include <iostream>
#include <iomanip>
using namespace std;
int main(){
	int a, num;
	cin >> num;
	
	if (num > 100 || num <= 1){
	
	cout << "OUT OF RANGE";
}
	else {
		for (int a = 1; a < num; a++){
			cout << setfill('0') << setw(2) << a  << ".";
	
	}
	cout << num;
	}
	
}