#include <iostream>

using namespace std;
void rec(int i) {
    if(i == 11) {
        return;
    }
    cout << i << " ";
    rec(i + 1);
}
int main()
{
    rec(1);
    
        return 0;
}
/*
 rec(1)
 rec(2)
 rec(3)
 rec(4)
 rec(5)
 rec(6)
 rec(7)
 rec(8)
 rec(9)
 rec(10)
 rec(11)
 
 **/