#include <iostream>
#include <queue>
#include <algorithm>
#include <vector>
#include <algorithm>
#include <set>
#include <cstring>
#include <cmath>
#include <map>
#include <fstream>
using namespace std;

void f(int x) {
    if(x > 10) {
        return;
    }
    cout << x << " ";
    f(x + 1);
}
int main() {

    f(1);
   return 0;
}
/*
 f(1) --> f(2)
 f(2) --> f(3)
 f(3) --> f(4)
 f(4) --> f(5)
 f(5) --> f(6)
 f(6) --> f(7)
 f(7) --> f(8)
 f(8) --> f(9)
 f(9) --> f(10)
 f(10) --> f(11)
 f(11) return

 */