#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;
    }
    f(x + 1);
    cout << x << " ";
}
int main() {

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